Seasonal Gardening

Gardening success through every season

CSU Extension provides trusted guidance for seasonal gardening, helping Coloradans plan, plant, and care for gardens year-round.

From spring planting to winter prep, find research-based resources to support healthy plants and productive landscapes in each season and stage of the growing cycle. Explore planting calendars, seasonal care guides, and recommendations tailored to Colorado’s climate zones.

A metal watering can and a pair of red rain boots sit on a wet patio in the rain, with bright yellow flowers arranged inside both.

Featured Resources

View All resources

Feature

Flowers & Plants

5 poinsettia care tips for healthy plants all holiday season

Research

Garden & Lawn Care

Home Sprinkler Systems: Preparing Your Sprinkler System for Winter

Research

Garden & Lawn Care

Fall and Winter Watering of Plants and Trees

Garden Notes

Forestry

Wrapping Trees For Winter

A person seated on a burlap-covered floor waters a potted houseplant using a metal watering can, with garden soil and a hand trowel scattered nearby.

Green School

Build your gardening knowledge with CSU Extension’s Green School, an online program focused on the science and practices of successful plant care. Learn how to manage fruits, vegetables, and ornamentals through every season using proven, climate-aware techniques.

Learn more