Hot summers and watering restrictions are becoming more common in Ottawa, but that doesn't mean you have to sacrifice a colourful, thriving landscape. By choosing drought-tolerant plants, you can enjoy a garden that's easier to maintain, uses less water, and still looks fantastic all season long.
The key is to plant varieties that naturally handle dry conditions once established. Perennials like Lavender, Catmint (Nepeta), Coneflower (Echinacea), Black-Eyed Susan (Rudbeckia), Yarrow (Achillea), and Sedum 'Autumn Joy' provide months of colour while attracting bees and butterflies.
For shrubs, consider Potentilla, Blue Star Juniper, Ninebark, or Sumac. These hardy choices stand up well to Ottawa's hot summers and cold winters with minimal watering after establishment.
Ornamental grasses are another excellent addition. Karl Foerster Feather Reed Grass, Little Bluestem, and Switch Grass add movement, texture, and year-round interest while thriving in sunny, dry locations.
To give your garden the best chance of success:
- Water deeply but less often to encourage deep root growth.
- Add 2–3 inches of mulch to help retain soil moisture.
- Improve heavy clay soils with compost before planting.
- Group plants with similar water needs together.
A drought-tolerant garden doesn't have to look dry or sparse. With the right plant selection, you can create a vibrant landscape that requires less maintenance and stays beautiful even during Ottawa's hottest weeks.
Explore our selection of drought-tolerant trees, shrubs, perennials, and ornamental grasses. Our team is always happy to help you choose the right plants for your garden and growing conditions.