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USDA Plant Hardiness Zones

To help gardeners understand which plants will grow well for them, the entire USA has been segmented into ‘Plant Hardiness Zones’. Knowing your zone number is helpful when shopping for plants because:

  • Cold-area gardeners can avoid buying plants that simply won’t survive their lowest winter temperatures.
  • Warm-area gardeners can steer clear of plants that need a period of cold weather in order to bloom again.
Find your Plant Hardiness Zone here.

June Gardening: What To Plant

Plant Cosmos and Sunflowers in June for blooms all the way into fall.

Many gardeners think of Memorial Day as the cutoff for planting in the garden, but that’s not the case! There is still plenty of time to plant in June for strong, healthy plants and vibrant blooms this season.

Second Season of Vegetable Crops

Although June is too late to plant long-season varieties such as Tomatoes and Eggplant from seed, you can still plant Basil, Carrots, Beets, Lettuce and more for a second harvest in the vegetable garden. In fact, many lettuce varieties can be sown throughout the season for multiple harvests.

Second Season of Blooms

Just like vegetables, flowers can also be seeded on the later side of the planting season to enjoy a round of blooms as other plants begin to fade. Annual wildflowers planted now will bloom a little bit later in the season, extending your garden into the fall. Marigolds, Cosmos, Zinnias, and Sunflowers are perfect examples – they usually burn out by late summer, but if planted now will last well past Labor Day, offering up a rainbow of late-season blooms.

Our Summer Splash Mix is great for June planting. It has 49 heat-tolerant species that bloom all season long.

Summer Splash Mix

Our specially formulated Summer Splash Wildflower Mix is designed for June planting. It has 49 different species (38 annuals and 11 perennials) that are heat tolerant, coming up and blooming just weeks after planting and lasting well into the fall. If you’re seeing bare spots in your garden or meadow but don’t want to add perennials or bulbs, this mixture is the perfect solution for easy, spectacular color this year. You can learn more about planting wildflowers here.

Perennial and Biennial Wildflowers

Perennial and biennial wildflowers need a full season to establish themselves in your garden or meadow before they bloom. By planting in June, you’ll be giving these seeds an entire season to get settled before winter sets in, ensuring strong plants that will burst with color in spring.

Dahlias are tropical bulbs, meaning they thrive in high heat and full sun.

Perennials and Bulbs

Planting perennials in June really depends on where you live. Here in Vermont, we still have plenty of time to get perennials in the garden as our ground temperatures have recently warmed and it’s still going down to the 50’s at night. Depending on your hardiness zone, you may want to hold off until the fall planting season to add perennials to the garden.

Summer-Blooming bulbs such as Dahlias, Gladiolus, Canna Lilies and more are actually tropical, meaning they thrive in hot climates with full sun. This makes them a great candidate for summer planting, but just make sure you have enough time before the frost for these beauties to grow and bloom.

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