What to Plant in Colorado in August

If your summer crops are harvested and all that free real estate in the garden has your green thumb itching to plant again, an August seeding is a great way to satisfy those earth-moving urges. Take it from us at Trelora, planting in August is a one-two punch: your yard will yield some amazing vegetables while the life of your garden will extend into the fall. Your garden's longevity will give your home a summery look, even into the cooler months.

Before you begin planting, though, make sure that you ballpark the first frost date for Colorado. If there is anything that Coloradans know, it is that the weather can change in an instant! The first frost date varies, but for the state, the first frost on average falls in the opening weeks of October. At that point, it comes down to scheduling and there are plenty of vegetables and plants to grow as the summer winds down.

If You're Playing in the Short-Game, Consider Planting Radishes and Leafy Vegetables like Spinach and Endive

Let’s face it, things happen in life that get in the way of planting and gardening. But luckily, some plants have a short growing period, meaning that even if planted later on in the month, they will still come in before the frost hits. Spinach and endive have a quick turnaround of 40 and 45 days to harvest, respectively. You can even plant radishes as late as mid-September, as they take 30 days to harvest.

Peas, Collards, Broccoli, Kale, and Lettuce are Worth Planting in August. 

Each of these plants takes approximately 55 to 65 days to harvest. Watch those peas though: When peas are planted in the fall, they are susceptible to powdery mildew. Look for mildew resistant varieties when purchasing.



If you begin planting early enough, root vegetables are also a variety to think about. Turnips generally take 50 days to harvest, while beets take 60 days and carrots 70. 


Fruiting Vegetables are an Option, Too. 

Your fall seeding does not end and begin with strictly vegetables as you can also squeeze in some fruiting vegetables, the cucumber and the bush bean are both easy selections if you are looking to introduce some different flavors to the mix.