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Hydrofarm Seedling Heat Mats

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Description

Hydrofarm™ Seedling Heat Mats

Re-engineered for better performance and greater durability!  The new, stronger heating wire and thicker multi-layer construction offer more uniform heating and the durability to withstand rugged greenhouse environments.

Minnesota's Destination Garden Center

Gertens is one of North America’s largest garden centers and home to Minnesota’s largest selection of annuals, perennials, natives, houseplants, trees, shrubs, and evergreens.  We’ve been “Growing in the Grove” in Inver Grove Heights since 1921 and our campus now covers over 100 acres of shopping and growing facilities. Gertens is still a family-owned business with a focus on giving customers the ability to buy high-quality plants and trees directly from a local grower.  After all, IT'S ONLY NATURAL TO BUY FROM THE GROWER.

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Details

Hydrofarm™ Seedling Heat Mats

Re-engineered for better performance and greater durability!  The new, stronger heating wire and thicker multi-layer construction offer more uniform heating and the durability to withstand rugged greenhouse environments.

  • Increases success of seedlings and cuttings
  • Warms root area 10-20°F over ambient temperature to improve germination
  • Light, watering, and planting information on mat
  • Waterproof construction
  • 6' power cord
  • The only UL listed seedling heat mats on the market!
  • 50% thicker construction than other heat mats

Available in 3 sizes to accommodate single tray, 2 trays, and 4 trays.

Product Questions (12)

Starting times will vary depending on the vegetable you are growing. Each seed packet will have specific sowing instructions for that type of vegetable. Some plants, such as tomatoes and peppers, should be started indoors, 6-8 weeks before the last frost...
The process of bringing seeds outside is called hardening off. Hardening off is generally done sometime after the seedling has two full sets of normal leaves. In Minnesota, you want to begin hardening off seedlings in late April/early May.  To ...
If you have a southern facing window with all day sun, you may grow seedlings in a windowsill. Be sure to rotate the seedlings frequently to ensure the plants do not lean heavily towards the sun. For more even results, use a grow light, positioned roughly...
We recommend using either high intensity T5 fluorescent bulbs, or LED grow lights. Both setups will produce excellent results. T5s are the typical grow light, are economical and come in frequencies that are helpful for plant development. LED technology...
Grow lights should be kept roughly 4-5” above the top of seedling leaves. If you are using very powerful LEDs, you could even keep them 8-10” away.
Grow lights should be used to mimic a natural sunlight cycle for plants. We recommend using them 12 hours a day, from roughly 7am to 7pm.  
A variety of seedling trays exist for seed starting. If you are starting smaller seeds, a simple peat cell tray works great. However, the larger the seed, the larger the initial pot should be. If you are starting larger seeds indoors such as: sunflowers...
Do not start any type of fertilizer regime for young seedlings until they have at least two full sets of regular leaves. Start with a root stimulator, then after a month you may move on to a gentle, weak (half strength) water-based fertilizer. Remember...
Let the roots tell you when to transplant. When you begin to see the seedling’s root growing out of the bottom of their current pot, it is time to transplant up to something larger. We recommend using a 4” nursery pot to transplant most seedlings. In...
Gertens carries a wide variety of both spring and autumn planted bulbs. Spring planted bulbs, such as gladioli and dahlias, are best started indoors in early April, and planted outside once the soil temperatures are above 55 F. Autumn planted bulbs, ...
The big three tips are: 1) Staking and training 2) Feeding and watering and 3) Harvesting and enjoying. 1) Keeping plants trained and staked allows air circulation around crops and provides much-needed support for produce as it grows...
Gertens does carry an assortment of both perennials, as well as annual and perennial wildflower mixes. It is important to remember when growing perennials, that you will not get any flowers the first year of growth. It often takes a perennial 2-3 years...

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