Collection: Mini Greenhouses/Cold Frames

Extend your seasons with a greenhouse!

3 products

Mini Greenhouses/Cold Frames - Grow Organic

Mini greenhouses, also known as cold frames or garden cloches, are versatile and compact structures that can extend your gardening season and protect your plants from the challenges of unpredictable weather. These invaluable garden accessories provide a controlled environment for your plants, shielding them from frost, wind, and excessive rain while capturing warmth and sunlight. At GrowOrganic, we offer a diverse selection of mini greenhouses designed to cater to specific gardening needs and preferences.

The Benefits of Mini Greenhouses:

Mini greenhouses offer a range of advantages for gardeners of all levels, from beginners to experienced horticulturists:

  1. Extended Growing Season: Mini greenhouses create a microclimate that allows you to start your plants earlier in the spring and extend your growing season well into the fall or even winter, depending on your location.

  2. Frost Protection: These structures provide essential frost protection for delicate seedlings, young plants, and temperature-sensitive crops, helping prevent frost damage and enabling healthier growth.

  3. Temperature Control: With adjustable ventilation options, mini greenhouses allow you to regulate the internal temperature, ensuring your plants thrive in optimal conditions.

  4. Pest and Critter Defense: These enclosures act as barriers against pests, insects, and small animals that can harm your crops, reducing the need for chemical treatments and pest management.

  5. Space Optimization: Mini greenhouses are perfect for gardeners with limited space. They can be placed on patios, balconies, or even in small backyards, providing a compact and efficient growing solution.

Our Selection of Mini Greenhouses:

  1. Cold Frame Mini Greenhouses: Our cold frames are designed for easy access and excellent light transmission. They are perfect for hardening off seedlings, protecting young plants, or extending your growing season.

  2. Portable Mini Greenhouses: These compact and easily movable greenhouses are ideal for gardeners who want to maximize sunlight exposure while shielding plants from harsh weather conditions. They come in various sizes to suit your needs.

  3. Greenhouse Tunnels: Our greenhouse tunnels provide a larger, more flexible growing space. They are easy to assemble and offer a comfortable environment for your plants.

  4. Walk-In Greenhouses: Our walk-in greenhouses are the perfect solution if you require a more substantial gardening space. With ample room for multiple plants and taller crops, they offer a convenient and controlled environment.

Mini Greenhouse Accessories:

To enhance the functionality and longevity of your mini greenhouses, we also offer a range of accessories, including:

  1. Shade Cloth: Protect your plants from excessive sunlight and heat with shade cloth, allowing you to maintain the ideal growing conditions.

  2. Thermal Covers: Extend your growing season even further with thermal covers that capture and retain heat during colder months.

  3. Anchor Kits: Ensure the stability and security of your mini greenhouses by anchoring them securely to the ground, especially in windy areas.

  4. Ventilation Systems: Regulate temperature and humidity levels inside your mini greenhouses with our range of ventilation options, including louvered side vents and automatic vent openers.

Mini greenhouses are invaluable tools for gardeners looking to maximize their growing potential and protect their plants from the challenges of weather and pests. At GrowOrganic, we offer a diverse selection of mini greenhouses and accessories designed to cater to your specific gardening needs. Whether you're a seasoned gardener or just starting your horticultural journey, our mini greenhouses provide a reliable and versatile solution for year-round gardening success. Explore our range and unlock the potential of your garden with these compact and efficient structures.

For more tips on extending your garden season, review our recent blog with and recommendations.

FAQs: Annie's Perennials

What are perennial plants?

Perennial plants live for more than two growing seasons. If properly cared for, they will return year after year with consistent bloom times to add color and diversity to your garden.

What is the difference between annuals and perennials?

The key difference between annuals and perennials is their lifespan. Annuals live for one growing season, although some of our annual plants do re-seed, thereby prolonging their benefits past a single season. Perennial plants and perennial flowers persist for several years, returning year after year, every growing season. Another difference is that true annuals will bloom throughout the entire season; whereas, perennials may bloom intermittently during or between seasons.

What are the benefits of growing perennials?

Perennial plants and flowers provide lasting beauty and structure to your garden. They have specific seasonal bloom times that remain consistent year after year, ensuring vibrant color for your garden throughout the seasons. Perennials also contribute to biodiversity and help the overall environment. Their deep root systems help prevent soil erosion and retain nutrients, while also sequestering carbon. Planting lots of different perennials with varied bloom times ensures consistent, reliable food sources for bees, butterflies, hummingbirds, and beneficial wildlife.

When should I buy perennials to plant?

The ideal time to plant perennials is spring or early fall. This allows them to establish their root system before extreme weather.

How do I care for perennial plants?

In general, Perennials need watering, occasional fertilization, and deadheading to encourage repeat blooming. The specific care needs can vary by type. At Annie’s Annuals & Perennials, we offer many native and low water, low-maintenance perennials to make planting and caring for them easy. We want to make gardening success attainable for everyone.

Can you plant perennials in pots or containers?

Yes! We have hundreds of perennial plants that work well in containers as well as in garden beds. Just make sure your pot size is adequate for the root system of your particular plant.

Do perennials require full sun?

Some perennials prefer full sun, which typically means at least 6 hours of direct sunlight daily. Other varieties require full or partial shade. At Annie’s Annuals & Perennials, we offer you many options for both shade and sun plants to fit every gardening need.

Do perennials attract pollinators and wildlife?

Yes! Perennials, with their reliable bloom times, are valuable additions to a pollinator-friendly garden. They provide consistent food sources for bees, butterflies, hummingbirds and other beneficial wildlife. Planting many different perennials with varied bloom times will attract and feed pollinators throughout all of the seasons.

What are some popular perennial flowers?

Some common perennials include <strong>Yarrow</strong> (Achillea millefolium), </strong>African daisies</strong> (Arctotis) </strong>Butterfly Bush</strong> (Buddleja davidii), <strong>Campanula, Dahlia, Delphiniums, Peonies (Paeonia), Roses (Rosa), Irises, and Coneflowers</strong> (Echinacea). At Annie’s Annuals & Perennials, we offer almost hundreds and hundreds of popular perennials – like the ones previously mentioned, along with more unusual and hard-to-find varieties.

At Annie’s Annuals & Perennials, we also offer many more perennials that are quite unusual and hard to find

What are hardy perennials?

Hardy perennials are perennial plants that grow for multiple seasons and can survive very cold weather in their growing zones. For this reason, hardy perennial plants are the perfect plant selection for any garden.

Do perennials come back every year?

Yes, if planted and cared for properly, perennials will return year after year. At Annie’s, we offer hundreds of perennials that are perfect beginner plants– easy to grow and easy to care for - so everyone can garden successfully.

What are different types of perennials?

Flowering Perennials: Are known for vibrant, consistent and long-lasting blooms. Examples include peonies (Paenonia), roses (Rosa), coneflowers (Echinaea), Abutilon, Alstroemeria, african daisy (Arctotis), foxglove (Digitalis pupurea), carnations (dianthus), geraniums, sages (Salvia), Strawflowers (helichrysum bracteatum), hollyhocks and impatiens, among many others.

Foliage Perennials: Are known for their striking, colorful foliage. Hostas, heucheras, and ornamental grasses are some common varieties.

Shade-Loving Perennials: Thrive in low-light or partial shade conditions. Examples include astilbes, ferns, and bleeding hearts (dicentras). Some of our favorite shade perennials at Annie’s are Begonias, Fuchsias, Sedges, Hellebores, Heucheras, and Impatiens.

Sun-loving perennials: Thrive in full sun conditions (meaning full sun for at least 6 hours per day). Some common examples of sun-loving perennials are lavender (Lavandula), sage (Salvia), African daisy (Arctotis), and yarrow (Achillea millefolium). At Annie’s Annuals & Perennials, we offer almost one thousand sun-loving perennials – like the ones previously mentioned along with more unusual and hard-to-find varieties.

Herbaceous Perennials: These are perennial plants that die back to the ground each Fall or Winter, but whose roots remain alive and send up new growth and reemerge in the Spring or Summer. They include a variety of flowers and foliage, like columbines (Aquilegia), delphiniums, foxglove (Digitalis pupurea), and Iris.

Woody Perennials: These are shrubs and small trees that persist for many years, bringing useful structure and seasonal blooms to your garden. Examples include hydrangeas, California lilac (Ceanothus), fuchsias, and butterfly bushes (Buddleja).

Native Perennials: are well-suited to specific regions and often need less maintenance and human intervention. California native plant species might include yarrow (Achillea), California poppies (Eschscholzia californica), milkweed (Asclepias), monkey flowers (Mimulus), and some sages (Salvias), depending on your location. At Annie’s Annuals & Perennials, we offer one of the largest selections of CA native perennials to be found anywhere.

Long-Blooming Perennials: Have extended blooming periods and can include varieties like Alstroemeria, Abutilon (Flowering Maples), African daisies (Actotis), Agastache, coreopsis, yarrow (Achillea), and sages (Salvias).

Drought-Tolerant Perennials: Can withstand periods of dry conditions and need less watering. Examples include lavender (Lavandula), yarrow (Achillea), sedum (stonecrop), Agastache, Aloe, milkweed (Asclepias), and some sages (Salvias).

Deer-resistant Perennials: Have characteristics that make them less appealing to deer. Options include yarrow (Achillea), lambs' ears (Stachys byzantine), Agastache, and some ornamental sages (Salvia).

Perennial Bulbs: Some perennials grow from bulbs, including favorites like tulips, daffodils, freesias, ranunculus, and irises. They return year after year, adding color to your garden each spring.

Climbing Perennials: Perennial vines like clematis and wisteria add vertical interest to your garden, climbing trellises, arbors, and fences.