May gardening is magical in the high desert garden! At the beautiful Greenhouse Garden Center & Giftshop in Carson City, we’re kicking off the season with a full lineup of events, expert classes, and fantastic sales designed to help gardeners at every level grow smarter, stronger, and more beautifully this spring.

From thriving tomatoes and fragrant roses to stunning irises, pollinator-friendly flowers, and low-water landscaping, we’ve packed the month with hands-on learning and inspiration. Plus, with every $5 class, you’re supporting local charities!

Here’s what’s blooming this month:

May Gardening Events & Classes

• May 3: Bonsai Club with Ken Jones
• May 3: Dwarf Conifers with Brian (get our full list of Conifers for Nevada!)
• May 10: Maximize Garden Space with Brian
• May 17: Tomato Gardening with Tom (download our Tomato Guide!)
• May 17: Giant Pumpkin Growing with Brian
• May 18: Iris Gardening in Northern Nevada with Julie Ruf
• May 24: Xeriscaping & Low-Water Gardening with Brian
• May 25: Fresh Cut Flower Gardening with Tiffany
• May 25: Backyard Birding Tour with Elona

Sales & Specials

• Spring Fling Raffle (All Month): Win one of two $500 gift cards
• Mother’s Day Rose Sale (May 10–11): Buy 3, get the 4th for a penny
• Dean Crouser Ceramics (May 10–11): 20% off
• Soil Sale (May 17–31): Paydirt and Master’s Pride Soils: Buy 3, get the 4th for a penny
• Tomatomania (May 17–26): Buy 3 tomato plants, get a 4th for a penny
• Pottery Sale (May 24–June 8): 20% off all pottery

And, as always, here’s our Top 10 Gardening tips. For more in-depth info on our May Top 10, download our May Top 10 List here!

Top 10 Gardening Tips for May

1. Fertilize Regularly – Choose fertilizers with slightly acidic pH for trees, shrubs, and flowers.
2. Use a Hydofeed Injector – Save time by fertilizing through your irrigation system.
3. Protect Austrian Pines – Spray fungicide weekly as needle tips elongate.
4. Watch for Late Frosts – Cover tender plants like tomatoes, peppers, and marigolds.
5. Control Spurge in Lawns – Use Weed Beater Complete for pre- and post-emergent protection.
6. Prevent Codling Moths – Spray fruit trees weekly after blossom drop.
7. Treat for Aphids – Use systemic or organic methods; ladybugs love to help!
8. Care for Your Pond – Use Blue Pond Shade, Microbe-lift, and Barley Bales to keep water clear.
9. Celebrate with Roses – Plant roses for Mother’s Day that bloom all summer long.
10. Plant Warm-Season Veggies – Mid-to-late May is perfect for tomatoes, melons, corn, and squash.

Whether you’re creating a xeriscape, starting your first veggie patch, or simply looking to refresh your flower beds, May is your moment! Come grow with us at Greenhouse Garden Center.