By Ava Green

As soon as warm weather and sunshine arrive in Southern Ontario, it’s time to head to the garden centre and pick up all the plants we’ve been dreaming about all winter long! May 24th is generally the date we look forward to — the unofficial marker when frosty mornings are behind us and the promise of summer is ahead. 

By now, cool-weather plants like cabbage, Brussels sprouts, peas, and lettuce should be well established in the vegetable garden. And for everything else, it’s go time!

TIP: Before you start planting, this is the ideal time to amend your soil. Top up your garden beds with fresh topsoil or enrich them with compost to improve soil health, add nutrients, and promote vigorous plant growth. Don’t forget to refresh the soil in your containers as well, with potting mix or compost.

Warm Weather Vegetables

When soil temperatures are consistently 60°F (15°C) or higher, it’s safe to plant all the warm-weather vegetable crops we’ve been waiting for! Plants that thrive in warmer weather include tomatoes, peppers, eggplants, cucumbers, zucchini and corn.

At Eising Garden Centre, you’ll find vegetables in 6-packs, 4” pots, trellised patio containers, patio bowls and hanging baskets - while supplies last, of course!

Herbs also love warm weather, and tender varieties like basil are safe to plant once all danger of frost has passed. Whether you plant herbs directly into the ground or create a potted herb garden near the kitchen door, they’ll add fresh flavour to your meals all season long. A container of herbs also makes a wonderful gift when visiting friends and family for a summer BBQ.

While you’re in the vegetable and herb aisle, keep an eye out for everbearing strawberries in planters and containers of tropical fruits like lemons, limes, and oranges.

Annual Flowers

Winter-weary flower beds can be revived almost instantly with a burst of colourful annuals! If you’re looking for an immediate impact and blooms that last all summer long, annual flowers are the answer.

Whether you plant them in beds, containers, window boxes, or hanging baskets — or choose from one of our gorgeous pre-planted options — just add water and fertilizer, and you’ll be rewarded with a vibrant display that keeps on giving.

Perennials

While perennials may not bloom all summer, many offer extended bloom periods, and by combining different varieties, you can create a succession of flowers that lasts for months. Perennials also provide essential greenery to anchor your garden and enhance the look of your flowering plants.

You can plant perennials from spring through fall, but getting them into the ground now gives them a strong start. From hostas and ornamental grasses to daisies and delphiniums, there’s a perennial for every style of garden — and the best part is, they’ll return each spring like dependable old friends.

Trees, Shrubs and Vines

Often called “the bones” of the garden, trees, shrubs, and climbing vines add essential structure, height, and seasonal interest. Planting them now allows you to design your garden layers thoughtfully, incorporating annuals and perennials around their base.

Spring is also the prime time to purchase and plant fruit trees and fruiting shrubs. At Eising, spring offers the best selection for starting your home orchard. Are you thinking of adding a few edible shrubs? Gooseberries, haskaps, hardy kiwi, rhubarb and raspberries are excellent choices.

Mulch

Okay, it’s not a plant, but this is a reminder to add mulch to your garden beds or containers. After planting, adding a layer of mulch to your garden beds or containers helps retain soil moisture, reduces transplant shock, and suppresses weeds. Even if a few weeds manage to sneak through, mulch makes them easier to pull.

Water Garden Plants

If you have a garden pond, spring is the perfect time to add water plants. Floating plants, such as water hyacinths and water lilies, help shade the pond’s surface, reducing algae blooms. Marginal or bog plants, such as water iris, papyrus, and cattails, also help keep the water healthy and clear by improving oxygen levels and providing habitats for beneficial wildlife.

Time to Grow!

May is one of the most anticipated and exciting months in the garden. Whether you’re dreaming of fresh vegetables, a lush landscape, or a colourful flower display, planting now sets the stage for a beautiful, bountiful season. Visit us at Eising Garden Centre to find everything you need — and let’s get growing!

By Dave Zeldon and Ely Schweyer

   If started too soon, your plants will be leggy and overgrown long before you can transplant them into the garden. The general rule of thumb (even if yours isn't green), is if the seed packet recommends sowing four to six weeks before the last frost date, it's better to pick the four - rather than the six-week date (to calculate the sowing date, count back from the third week of May).

   In this blog post, we’ll discuss the proper timing of the beneficial companion planting practice, to ensure an organic triple-play of pesticide reduction, nutrient sharing, and the fruits of your labour actually tasting better!

What is Companion Planting?

   The use of companion plants is an organic approach embracing plant diversity that involves growing certain different types of plants near each other. By mixing a variety of plants together you confuse harmful insects (i.e., the ‘Three Sisters,’ corn, beans, and squash). When you plant certain vegetables together or alongside flowers or herbs, you can often camouflage the scent of a given plant so that its potential enemies can't find it. For example, if you plant onions and carrots together, the Carrot Rust Fly can no longer detect the scent of its "prey," the carrot.

☝️ Plants also share nutrients and amend the soil below ground – in the instance of the Three Sisters, beans fix the nitrogen content of the soil for corn, who has long lost its ability to produce its own nitrogen.

What to Plant?

Herbs Make Excellent Companion Plants

Instead of grouping them all together in a corner, plant them in among your vegetables. Tarragon and marjoram give off a scent that repels most insects. Sage, rosemary, and thyme repel insects that feed on the different plants of the cabbage family. Plant these herbs near your cabbage, cauliflower, and brussels sprouts. Coriander attracts parasitic wasps that are very useful in controlling all sorts of pests.

🖱️ See more on companion planting with herbs here.

Why Not Try Flowers in the Vegetable Patch?

Nothing will make your vegetables happier! Plant borders of alyssum and cosmos; these attract beneficial insects and repel certain harmful ones. Marigolds protect tomatoes from threadworms, and nasturtiums and petunias attract aphids. If you plant them near your tomatoes, the aphids will choose the flowers instead of your tomatoes.

Meet My Plant Friends!

Plant friends are plants that can be grouped together because they mutually help each other grow. Basil stimulates the growth of Tomatoes and enhances the quality of the yield. Chamomile improves the growth and taste of cabbage and onions. It has been found that peas and beans enhance the growth of cucumbers and potatoes. Peas and beans also repel the Colorado Potato Beetle that commonly attacks potatoes and eggplant.

   Once you’ve decided who is going where, it’s time to focus on when who is going where.

When To Plant?

It is important to know when the last spring frost date is for your area. Many plants need to be planted after the last frost, so that they don't freeze their little buds off! Follow this guide so that you can have healthy, sturdy little plants that will become good friends in your garden this summer.

Ten Weeks Before Last Frost Sow indoors: broccoli, brussels sprouts, cabbage, cauliflower, eggplant, lettuce, peppers, and onion

Eight Weeks Before Last Frost Sow indoors: tomatoes Sow outdoors: spinach

Five Weeks Before Last Frost Sow indoors: marigolds (do not transplant until after last frost) Sow outdoors: peas Transplant: broccoli, cabbage, cauliflower, onion

Four Weeks Before Last Frost Sow indoors: cantaloupe, cucumbers, okra, pumpkins, squash, and watermelon

Three Weeks Before Last Frost Sow outdoors: carrots Transplant: brussels sprouts, hardened off frost-hardy herbs like chives and oregano

Week of Last Frost Sow outdoors: pole beans Transplant: cantaloupe, eggplant, lettuce, okra, peppers, pumpkins, squash, tomatoes, and watermelon

BONUS: Tips on Ensuring Your Seeds Have the Best Start!

🌱 To ensure success it is always best to use fresh, sterile seed-starting mixture (available from garden centres). Moisten mixture about an hour before sowing; it shouldn't be soggy, just as damp as a wrung-out sponge.

🌱 Follow the information contained on seed packets in terms of timing, lighting requirements, sowing depth, and optimal germination and growing temperatures.

🌱 Lightly water freshly sown flats, then cover with plastic dome lid, or if reusing containers try placing them inside a plastic zip-lock bag. At the first signs of germination, uncover or remove from plastic bag.

🌱 As the seedlings develop, wait until the top of the soil looks dry, water carefully using a small watering can with a fine spray. Avoid over watering: soggy soil and poor air circulation can lead to damping off, a fungal disease that can kill seedlings.

🌱 Locate your seeding flat in a bright window but grow lights or cool fluorescent tubes are better. Keep seedlings about eight to 10 centimetres from light source to prevent plants from becoming too spindly. Plug lights into an automatic timer set for 16 hours on, eight hours off. Be careful if you’re using the windowsill method though, as extremes in temperature may occur from hot drying sunny days to frigid evenings.

🌱 When seedlings have two sets of true leaves (the first leaves are called cotyledons — or seed leaves — so wait for the true ones, start feeding once a week with a balanced (20-20-20), water-soluble fertilizer at half-strength, working up to full strength after a few weeks.

🌱 Finally, the plants which have been raised under sheltered conditions must now be hardened off (see more here) before planting out. Gradually lower the temperature and reduce the watering while exposing the plants to brighter light for seven days prior moving them out to a cold frame. Keep an eye on the weather as sudden changes, as it often happens in spring, could spell disaster to your young plants.

We hope your garden is biodiverse and fruitful this year! For more information – and companion plants – visit Eising Greenhouse and Garden Centre this spring! 🌿

Dealing with water restrictions or choosing to conserve water? You’re not alone. Many gardeners in Norfolk County are facing the challenge of keeping gardens thriving with less water. The good news? A lush, colourful garden is still within reach—thanks to drought-tolerant perennials.

When we think of drought-tolerant plants, cacti might be the first thing that comes to mind. But there’s a surprising variety of beautiful, hardy perennials that can handle our region’s dry spells—no desert landscape required.

While these plants do need regular watering when first planted, once established, they’re low-maintenance and well-suited to Southern Ontario’s climate, including periods of limited rainfall.

Full Sun Ground Cover

• Candytuft (Iberis sempervirens)
• Catmint (Nepeta x faassenii)
• Hardy ice plant (Delosperma nubigenum)
• Hens and chicks (Sempervivum tectorum)
• Moss phlox, creeping phlox (Phlox subulata)
• Pincushion flower (Scabiosa japonica var. alpina) (S. ‘Butterfly Blue’)
• Pinks (Dianthus alpinus)
• Rock cress, wall cress (Arabis species)
• Rock rose, sun rose (Helianthemum hybrids)
• Spurge (Euphorbia myrsinites) (E. polychroma)
• Stonecrop (Sedum acre) - dwarf varieties
• Thrift, sea pink (Armeria maritima)
• Thyme (Thymus species)

Full Sun, Medium to Tall Plants

• Beard-tongue (Penstemon digitalis) – Native
• Bergenia (Bergenia crassifolia)
• Black-eyed Susan (Rudbeckia hirta) – Native
• Blanket flower (Gaillardia x grandiflora)
• Butterflyweed (Asclepias tuberosa) – Native
• False indigo, wild indigo (Baptisia australis)
• Hairy penstemon (Penstemon hirsutus) – Native
• Lanceleaf coreopsis (Coreopsis lanceolata) – Native
• Lavender (Lavandula angustifolia)
• Orange coneflower (Rudbeckia fulgida ‘Goldsturm’)
• Perennial cornflower (Centaurea montana)
• Poppy (Papaver species)
• Purple coneflower (Echinacea purpurea)
• Prickly pear cactus (Opuntia compressa) – Native
• Russian sage (Perovskia atriplicifolia)
• Salvia (Salvia nemerosa hybrids)
• Sea Holly (Eryngium species)
• Silver sage, wormwood (Artemisia ludoviciana)
• Threadleaf coreopsis (Coreopsis verticillata) – Native
• Yarrow (Achillea millefolium)  

Full Sun Grasses

• Big bluestem (Andropogon gerardii) – Native
• Blue fescue (Festuca glauca)
• Blue oat grass (Helictotrichon sempervirens)
• Feather reed grass (Calamagrostis x acutiflora ‘Karl Foerster’)
• Little blue stem (Schizachyrium scoparium) – Native
• Switch grass (Panicum virgatum) – Native

Groundcover for Shade

• Barrenwort (Epimedium hybrids)
• Bigroot geranium (Geranium macrorrhizum)
• Canada anemone (Anemone canadensis) – Native
• Creeping phlox (Phlox stolonifera)
• Sweet Woodruff (Galium odoratum)
• Wild ginger (Asarum canadense) – Native
• Woodland phlox (Phlox divaricata) – Native

Medium to Tall Plants for Shade

• False Solomon’s seal (Maianthemum racemosum) – Native
• Solomon’s seal (Polygonatum biflorum) – Native

Ferns for Dry Shade

• Christmas fern (Polystichum acrostichoides) – Native
• Hay-scented fern (Dennstaedtia punctilobula) – Native
• Marginal wood fern (Dryopteris marginalis) – Native
• Male fern (Dryopteris filix-mas) – Native
• Rock fern (Polypodium virginianum) – Native

A Little TLC

It doesn’t take much to keep drought-tolerant plants thriving—just a little attention and some seasonal TLC. While they’re tough, even these hardy perennials appreciate an occasional deep watering during extended dry spells, especially in their first year.

For sun-loving perennials, skip the heavy fertilizers. Instead, an annual layer of compost is all they need to stay healthy and strong.

Shade-loving drought-tolerant plants, on the other hand, benefit from a layer of mulch. This helps retain moisture and reduces evaporation, especially in dry shade, which is one of the most challenging conditions for any plant to thrive in.

And don’t forget to deadhead regularly! Removing spent blooms encourages your plants to keep producing flowers instead of going to seed, meaning more colour, for longer.

With a few simple care tips, your drought-tolerant garden can remain beautiful and resilient throughout the entire season.

Other resources:

• Landscape Ontario: Eight Beautiful Drought Tolerant Plants
• Toronto Master Gardeners: Drought Tolerant Plants
• Guelph.ca: Drought Tolerant Native Plants

If you have some space in your flower or vegetable garden, growing herbs is definitely worth it! Many are drought tolerant, do well in containers, require very little care, and can provide a bountiful harvest all summer long. 

Buying herbs at the grocery store is often pricey. Growing them at home, using the tips below, helps to ensure a steady supply for a fraction of the price. 

If  you’re not accustomed to adding herbs to meals at home, buying a plant is a great way to experiment and see which ones you like. If you try Cilantro, for example, and don’t like it, place it in a nice pot and take it as a hostess gift the next time someone invites you to a barbeque. Especially if you’re coming over to our house, we love it!

Herb Growing Tips

• Like many other plants, there are perennial and annual herbs (annuals don’t survive an Ontario winter and need to be planted each year). Perennial or annual may determine where you plant your herbs in the garden.
• Most herbs are drought tolerant and enjoy full sun. The amount of water and sun can vary slightly, so it’s good to note watering and light needs for the herbs you’re growing.
• The more you trim herbs, or “give them a haircut”, the more your plant will thrive. Start trimming them early - when they’re about 4 inches tall, and do it often! This will make your plants more sturdy and bushy.
• Regular pruning ensures that your herbs don’t flower! While this is the goal with many other plants, it’s not what you want with herbs. A plant will focus on producing flowers and seeds, and stop producing the leaves that you want to harvest for herbs!

Here’s a list of our favourite herbs to grow in Southern Ontario, and how to care for them.

Basil - Annual

If you’ve planted tomatoes, it just makes sense to add a few basil plants! The tomatoes will love them, and so will you on your toasted tomato sandwiches. Basil loves full sun, and evenly moist soil.

Chives - Perennial

Chives are one herb that you may want to allow to flower. Its blossoms are great for flavouring vinegar, and the plant will still produce mildly onion-flavoured stems. Chives like full sun but will still grow in partial shade, and once established they only need watering during dry spells.

Cilantro - Annual

To some people with a very specific gene Cilantro tastes like soap! For everyone else, it’s one of the most delicious herbs and a taco wouldn’t be the same without it. Cilantro prefers part shade, but will tolerate full sun. It can be allowed to dry out, but it may flower prematurely if it gets too dry.

Dill - Annual

While Dill is considered an annual, many people in Ontario find that if you allow it to eventually go to seed, it will reseed and grow again the following season. No guarantees. But worth a try, right?  Dill plants love full sun, and their roots just slightly moist.

Lemon Balm - Perennial

Fresh leaves can be used to make tea all summer long, or can be dried for winter use. But this versatile herb can be used for many things from pesto to cookies! Grow Lemon Balm in full sun to partial shade, and keep the soil moist for optimal growth.

Lemongrass - Annual

A staple in Thai cooking, Lemongrass is a great addition if you love to cook. Full sun and moist soil will keep this herb happy and producing lots of  lemony stalks. You might want to try bringing it indoors for the winter as well.

Mint - Perennial

This herb comes in so many variations that are just simply delicious - spearmint, peppermint, apple mint, chocolate mint, and more! But this is one plant you’ll want to keep in a pot, well away from garden soil. It’s also one to trim before it sets seeds or you will have a garden that’s full of mint! It can be invasive. It will thrive in full sun but will stand some shade, and it likes moist soil.

Oregano - Perennial

For obvious reasons, (tomato sauce) Oregano is a great addition to the garden. It will spread and reseed throughout the garden if you let it go to seed, but some people like this feature and use it as a groundcover or border for a perennial bed. Oregano likes full sun to partial shade and once it’s established it is very drought tolerant.

Parsley (flat and curly) - Annual 

There was a time when every restaurant meal was adorned with a sprig of Parsley. It’s pretty. But it’s also an underrated culinary herb and can add wonderful flavour to soups and stews as well as other savoury dishes. Keep this plant moist and in full sun to part shade.

Rosemary - Annual

Is anyone else addicted to bread with olive oil, salt and Rosemary? It can’t just be us! This is another garden staple that loves full sun and slightly moist soil. It can also be brought indoors for the winter, but be sure to keep the soil from drying out completely. 

Sage - Perennial                            

Perennial, with a caveat. In Ontario, it’s best to provide some winter protection for this plant if you want it to survive the winter. I’ve had reasonable success with bringing it indoors for the winter, or it can be treated as an annual. Sage likes full sun and moist soil but don’t overwater this one! It does love the heat of summer and will produce a nice big plant once temperatures heat up.

Thyme - Perennial

Thyme is just so good in so many things - vegetables, meats, soups, and of course stuffing! It’s easy to grow if it has well-drained soil and full sun. Once it’s established it is moderately drought tolerant and can be harvested from early Spring until Winter. 

Like all herbs - don’t forget to give it frequent haircuts!

 

At Eising Garden Centre you’ll also find many more herbs to grow and enjoy. Do stop by and give them a try!