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!
If you’re looking for blooms that come back each Spring with a burst of colour, here are ten of our favourite flowering perennials and ground covers.
Plant These for a Spring Show!
Bleeding Heart (Dicentra)
Height: 30-120 cm, Spread: 45-90 cm
Flower Colour: white, pink, red, purple
Blooms: spring, summer
Growing: While Bleeding Hearts will tolerate full sun or full shade, they prefer the protection of light shade. This perennial is fairly drought tolerant, but it will thrive in evenly moist soil, and blooms will last much longer if the soil is moist.
Hellebore Christmas Rose (Helleborus)
Height: 30-45 cm, Spread: 30-45 cm
Flower Colour: white, green, pink, purple, yellow
Blooms: late winter to mid-spring
Growing: Moist, humus-rich, well-drained soil in lightly dappled shade is where hellebores do best.
Primrose (Primula)
Height: 15-60 cm, Spread: 15-45 cm
Flower Colour: blue, red, orange, white, pink, purple, yellow
Blooms: spring, early summer
Growing: Full sun or partial shade and moist, well-drained, humus-rich soil.
Anemone Windflower (Anemone)
Height: 8-150 cm, Spread: 15-60 cm
Flower Colour: white, yellow, pink, blue
Blooms: spring, summer or fall
Growing: Anemone does best in moist soil and partial or light shade, but they will tolerate full sun. While Anemone can take a while to become established, they’re worth the wait!
Columbine (Aquilegia canadensis)
Height: 45-90 cm, Spread: 30-60 cm
Flower Colour: white, red, yellow, pink, blue, purple (The colour of the spurs is often different than the petals)
Blooms: spring, summer
Growing: Columbines love full sun or part shade and moist, well-drained soil. This plant will self-seed and seedlings can be transplanted.
Virginia Bluebells (Mertensia virginica)
Height: 30-60 cm, Spread: forms groupings
Flower Colour: blue, pink, purple
Blooms: spring
Growing: Plant in partial to full shade with humus-rich, moist, well-drained soil. This woodland plant has blooms that are attractive to Hummingbirds and pollinators. Foliage dies back right after it blooms.
Moss Phlox or Creeping Phlox (Phlox subulata)
Height: 10-15 cm, Spread: 60 cm
Flower Colour: white, red, lavender, pink, bluish purple
Blooms: early spring
Growing: Plant in sun to partial shade with humus-rich, moist, well-drained soil. Spreads horizontally as it grows and creates new roots where the stems touch the ground. Do not prune in the fall as Spring’s flowers will already be forming on these plants.
Lungwort (Pulmonaria)
Height: 20-60 cm, Spread: 20-90 cm
Flower Colour: white, red, pink, blue
Blooms: spring
Growing: To avoid root rot, grow Lungwort in moist, humus-rich soil that’s well drained. They prefer partial shade to full shade.
Pasque Flower (Pulsatilla)
Height: 10-30 cm, Spread: 20-30 cm
Flower Colour: white, red, purple, blue
Blooms: early to mid-spring
Growing: Very well drained soil is important for Pasque Flower, which does not like to sit in wet soil. It will grow well in full sun or partial shade.
Peony (Paeonia)
Height: 60-80 cm, Spread: 60-80 cm
Flower Colour: yellow, pink, red, purple, and shades of white
Blooms: spring, early summer
Growing: Humus-rich, moist and well-drained soil in full sun or partial shade is where peonies do best. Adding lots of compost and planting at the proper depth is very important for peonies to bloom. Be sure to plant potted peonies at the same level as the soil around them, not higher.
