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Plant-a-Palooza at Thomas Greenhouse & Gardens

June 5–11, 2025 | Mukwonago, WI

Plant More. Spend Less.

It’s go-time for gardens across Waukesha County — and Plant-a-Palooza is here to help you dig in. This week-long sale is packed with fresh plants, big savings, and festival vibes straight from the greenhouse.

Whether you’re planting herbs, starting your veggie beds, or adding bold color to your containers, this is the week to make it happen.

Our greenhouse is overflowing with color, texture, and early-summer energy. Whether you’re planting for pollinators, growing your first garden, or restocking on mulch, Plant-a-Palooza has something for every kind of gardener.

Located in Mukwonago, we’re proud to serve Waukesha County with top-quality plants, helpful advice, and a whole lot of growing inspiration.

What’s on Sale…

  • Promotional image for Thomas Greenhouse & Gardens’ Plant-a-Palooza sale, running June 5–11, featuring tropical leaves and bold white text over a coral-to-yellow gradient background.
  • Large outdoor planters filled with vibrant red and white annual flowers. Banner text promotes 25% off during Plant-a-Palooza at Thomas Greenhouse in Mukwonago.
  • Close-up of green pepper plants in black pots with plant tags. Banner reads Buy 1, Get 1 on veggie plants at Thomas Greenhouse's summer garden sale.
  • Potted herb garden with signs labeled basil and marjoram. Slide promotes Buy 2, Get 1 offer on herbs at Plant-a-Palooza in Mukwonago, Wisconsin.
  • Bright tropical hibiscus flower with coral, yellow, and pink petals. Banner highlights Buy 1, Get 1 on tropical hibiscus at Thomas Greenhouse’s garden sale.
  • Colorful selection of blooming annual bedding flats, including cosmos and petunias. Sale promotion offers Buy 1, Get 1 during Plant-a-Palooza in Waukesha County.
  • Rows of ornamental grasses in 1-gallon pots. Banner announces Buy 1, Get 1 on annual grasses as part of Thomas Greenhouse’s garden event.
  • Hands scooping brown bark mulch next to yellow flowering perennials. Graphic promotes Buy 2, Get 1 free on bagged mulch during the June garden sale.
  • Glass terrarium holding a green air plant surrounded by colorful moss. Text highlights Buy 2, Get 1 offer at Thomas Greenhouse’s Plant-a-Palooza sale.
  • Thomas Greenhouse sale disclaimer slide with logo, stating no rain checks or price adjustments. Sale valid June 5–11, 2025, while supplies last.

Featured Specials:

  • Annual Planters – 25% OFF

  • Veggie Plants – Buy One, Get One FREE

  • Herbs – Buy Two, Get One FREE

  • Tropical Hibiscus – Buy One, Get One FREE

  • Annual Bedding Flats – Buy One, Get One FREE

  • 1-Gallon Annual Grasses – Buy One, Get One FREE

  • Bagged Mulch – Buy Two, Get One FREE

  • Air Plants – Buy Two, Get One FREE

  •  

No rain checks. No price adjustments.
Selection, size, and colors may vary.
Some exclusions apply — see store for details.
Offers and prices valid while supplies last:
Thursday, June 5 – Wednesday, June 11, 2025

Sign Up

Subscribe to our workshop, news and sale emails now.  You’ll be among the first to know the details for our sales and events in Mukwonago

Shop at Our Garden Center

  • Locally Grown Plants – Thriving, high-quality selections perfect for Wisconsin gardens.
  • Expert Gardening Advice – Need help choosing the right plants? Our friendly team is here to guide you.
  • Support Local – We’re proud to serve Mukwonago and the surrounding areas, including Waukesha.