• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer
Harlequins Gardens

Harlequins Gardens

Boulder's specialist in well-adapted plants

We are closed for the season, and will reopen in March 2023!

Gift Memberships & Gift Certificates  – available online!
See our seasonal hours and address, below.

Read our latest e-newsletter!

 

FacebookPinterestInstagram
  • Home
  • About
    • About Us
    • Staff
    • Display Gardens
    • Why the Name “Harlequin’s” Gardens?
    • Sustainability
    • Policy on Pesticides Including Neonicotinoids
    • Careers
  • What We Offer
    • Products
    • Plants
    • Gift Certificates
    • Membership
  • Plants
    • Annuals
    • Bulbs
    • Fruits
    • Groundcovers
    • Herbs
    • Natives
    • Ornamental Grasses
    • Perennials
      • Plants for Pollinators List
    • Roses
    • Vegetables
      • Tomato Starts
      • Pepper Starts
      • Other Vegetable Starts
      • Fall Vegetable Starts
      • Garlic
    • Xeriscape
  • Resources
    • Mikl’s Articles
    • Handouts
    • Newsletters
    • Links
  • Garden Tours
    • Virtual Garden Tours
    • Submit Your Garden!
  • Events
  • Classes
  • Blog
  • Wholesale
    • Wholesale Mailing List Sign Up
    • Who Qualifies
    • Wholesale Availability
  • Contact
Home | Products | Solar Caps – A Cozy Sweater for your Veggies!

Solar Caps – A Cozy Sweater for your Veggies!

We’ve passed the average last frost date but know that unexpected cold snaps can still occur.  Just as we need to add another layer of clothing during cold snaps, our warm-season veggie starts also need additional insulation as the spring season and soil slowly begin to warm up.  This layering can come in several forms, each with their own advantages and applications: low-tech overturned plant pots, row cover anchored over wire or plastic pipe frame (as illustrated in the “Hardening-Off” portion of this article), and Solar Caps. 

Because of their versatility and re-usability, Solar Caps have been one of our favorite garden tools for over a decade.

A Solar Cap consists of a sturdy, reusable metal frame that is anchored in the soil surrounding your warm-season veggie start (such as tomatoes, squash, peppers, etc.) and a water-filled bag that drapes over the outside of the frame. As the sun warms the water, heat radiates out to warm the soil, providing a terrarium-like environment for the veggie start to take root and begin thriving.  Eve demonstrates the step-by-step process to putting together your Solar Cap. Solar Caps can also be left in place around tomatoes throughout the growing season to provide protection from temperature fluctuations on summer and autumn nights, thereby extending your growing season.

Another important reminder is that continued heavy winds contribute to foliage and soil desiccation. So be sure to provide additional watering to help your plants withstand these conditions.

sidebar

Blog Sidebar

Sign-up for E-Newsletters!

Sign-up for our weekly e-newsletters to receive empowering gardening tips, ecological insights, and to keep up on happenings at Harlequin’s Gardens — such as flash sales and “just in” plants. We never share customer’s addresses!

We do not ship plants!

Our plants are for sale ONLY at our Boulder location. We DO NOT ship plants. Come visit us!

Hours by Season

MARCH HOURS
Thursday-Sunday, 9AM-5PM

APRIL-OCTOBER HOURS
Tuesday-Sunday, 9AM-5PM

Mondays, CLOSED

Footer

Contact Us

303-939-9403 (Retail)
staff@nullharlequinsgardens.com

4795 North 26th St
Boulder, CO 80301

Sign-up for E-Newsletters!

Sign-up for our weekly e-newsletters to receive empowering gardening tips, ecological insights, and to keep up on happenings at Harlequin’s Gardens — such as flash sales and “just in” plants. We never share customer’s addresses!

Map

Our Hours

Seasonally, MARCH to OCTOBER.
MARCH HOURS:
Thursday-Sunday, 9AM-5PM

APRIL-OCTOBER HOURS:
Tuesday-Sunday, 9AM-5PM

Mondays, CLOSED

The plants we grow are organically grown. All the plants we sell are free of bee-killing neonicotinoid pesticides.