• 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’re Open for the Season! Thursday – Sunday 9 – 5 in March! Tuesday – Sunday 9 – 5 in April!

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 | Blog | Products

Products

2023 Membership and Gift Certificates – Perfect Gifts

Still looking for the Perfect Gifts for Gardeners?

Gift Certificates and 2023 Memberships are sure to please this holiday season! We want to express our thanks and gratitude to all 2022 members, and to invite you to become a 2023 Member today.[Read More]

Fall Sale 2022 Final Week!

In tandem with the close of October, our 2022 Fall Sale will end this Sunday at 5pm. Before then, be sure to take advantage of our Fall Sale Discounts, which can help you achieve your end-of-season gardening goals with plants and soil products that are 30% off!  (Sale exceptions listed below.)

 

 

[Read More]

Fall Sale in Full Swing!

This is such a nice time of the year to putter in the garden! It’s also a good opportunity to look ahead and amend your planting beds and lawn for Spring 2023.  Our Fall Sale Discounts can help you achieve your end-of-season gardening goals with plants and soil products that are 30% off!  (Sale exceptions listed below.)

 

 

[Read More]

Very Special Products to benefit Your Soil Life and Your Plant Life

It all starts with the Soil, and we have some very special products to benefit your Soil Life and Your Plant Life!

All of these are sold pre-packaged, and we bag many of them ourselves in refundable, reusable plastic bags. Our Compost Tea is sold in refundable, reusable 1-gallon jugs, or you can bring your own.[Read More]

Spring Weather Protection Tools 

We know Mother Nature teases Coloradans with delightful warm weather days in between snow and cold spells, and while they give us hope for the warm spring days ahead, this is a pattern that will continue through March, and into April.

If you’re eager to get your garden started here are tools that you can gather now, which will help your plants succeed during the turbulent early spring transition period.  [Read More]

Cold Snap Alert!

We were just getting comfy and confident in the progressing spring weather, when Mother Nature reminds us that She is in control!

According to the NOAA extended forecast for Boulder, CO, there is a Hazardous Weather Outlook for northeast and north central Colorado later this week. Our weather is expected to shift beginning Thursday night into Friday when a cooler and wetter pattern moves in. Night temperatures Thursday are forecast to drop to about 40˚F, and day temperatures will hover in the low 50s. Friday and Saturday could bring even lower temperatures, with highs of only 45 and lows of 33, possibly accompanied by strong winds, rain, snow and/or H_ _L! It appears that this weather pattern could continue through Sunday / Monday. Temperatures in your garden will depend on your elevation and exposure, and could drop below freezing.

What this means for your plant care, especially tender vegetables, and annuals, is that it’s time to prepare to bundle them up later in the week before the cold snap arrives. Here’s how you can best do so. [Read More]

Solar Caps – A Cozy Sweater for your Veggies!

Unexpected cold snaps can still occur even after the last average frost date (around May 5).  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. [Read More]

Snow and Soil!

Wow!  That was an impressive snowstorm, even if it did arrive several days later than predicted. We know how hard many of us have had to work to clear paths through it.  And we hope everyone stayed safe, warm, healthy, and well-fed throughout. Colorado has been experiencing a long-term regional drought, so this addition to our mountain snowpack couldn’t be more welcome. Just think what a difference all this snow can make for Colorado’s farmers, many of whom have seen their ditch water allotments disappear in early July for the past several years.

[Read More]

Shrub and Tree Recovery Fertilizers and Mineral Supplements

AGE OLD ORGANICS DRY BLENDS

Grow Formula: 8-4-1.  a naturally based, high nitrogen blend of nutrients, including 1% calcium, which are slowly converted by soil microbes into plant available forms. Grow Formula is an excellent nutrient addition to potting mixes or soils and can be used as a top dressing on existing gardens and lawns.

[Read More]

Solar Cap Step-by-Step Demo

We love Solar Caps, and so do our tomato starts! Solar Caps consist of a sturdy welded galvanized steel wire frame that lasts for years, over which you drape the water-filled plastic bag that comes with the kit.  By positioning the Solar Cap where your tomato (or other warm-season veggies) will be planted, in 5-7 days your soil will be warm enough for planting (55+ F).  Following planting, Solar Caps form a personal greenhouse for your veggies, which improves growth throughout the season and won’t tip over or collapse. They protect plants from drastic spring temperature fluctuations and from nightly cooling. We leave the Solar caps on our tomatoes though the season, enlarging the opening in the top from a small slit at first to a fully open circle when plants have put on height and weather is consistently warm. We’ve had great success using them for many years and regularly plant our tomatoes by April 15!

Follow Eve as she sets-up her own Solar Cap:

1-Place the wire cage on the desired spot, pressing the legs firmly into the soil so the bottom ring sits on the soil surface.  [Read More]

Gardening Tools

Plants are, of course, the main thing every gardener wants in their garden. But to garden, one also needs some tools, and the quality of those tools makes a BIG difference in the comfort, ease, and speed of getting those garden chores done. Durability, reliability, precision, and ergonomic design don’t generally come cheap. A quality handsaw or pole-saw, a pair of pruning shears, loppers or hedge-trimmers will, with a little maintenance, last a lifetime.

Did someone you love just plant a home orchard? A berry patch? A new landscape? They’re going to need some good tools, and we’ve got them!

Japanese Knife-Weeder (Hori Hori)

Reviewed by former HG staffer Deb:

“This is the best all-around tool ever! Whenever I go out into the garden with no particular task in mind (other than peace of mind putzing) I grab this tool. It can dig, saw into fat roots, slice into bindweed roots with the pointed tip, it’s wonderful. I have a sheath for it which slides nicely onto a regular belt or garden-tool belt. I love using it for planting bulbs as I can make a deep, small hole. If I could only have one tool forever, I would choose this one.”

Managing Grasshoppers without Poisons

Nolo Bait is not a poison. It is a parasite that only affects grasshoppers and Mormon Crickets. It will not harm people, pets, wildlife or beneficial insects. It is most effective on small grasshoppers. In 3-4 weeks up to 50% of the grasshopper population will die. In addition, their eggs will be infected for the following season, and because grasshoppers are cannibalistic, they spread the disease. Put out shallow trays of the bran bait in small quantities. Wind, rain and contact with soil organisms can reduce bait available to grasshoppers.

Ducks, chickens, turkeys and guinea fowl can significantly reduce grasshopper populations. They must be fenced and put inside a safe structure every night to protect them from predators. They will also eat some plants, like vegetables.[Read More]

Pyrethrum Insecticides: Are they Safe?

Pyrethrum is one of the best known botanical insecticides, effective against a wide variety of insect pests and generally considered safe to use. Is it really safe? To answer any question about pyrethrum it must first be explained that what is referred to as “pyrethrum” can be many different products. There is pyrethrum, the raw flowers; pyrethrins,the extracts from the flowers; and pyrethroids, synthetic pyrethrum. In addition many other insecticides and enhancers are often added to formulations which are called “pyrethrum”.[Read More]

sidebar

Blog Sidebar

In This Section

  • Blog
    • Bees, Pollinators, and Beneficial Insects
    • Bulbs
    • Eve’s Insights
    • Fruit and Food
    • Groundcovers
    • Herbs
    • Holiday Gift Market
    • Native Plants
    • Ornamental Grasses
    • Perennials
    • Pest Management
    • Plant and Soil Health / Disease
    • Plants
    • Products
    • Pruning
    • Roses
    • Shrubs
    • Soils
    • Sustainability
    • Trees
    • Vegetables
    • Xeriscape

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.