Jiffy Seed Starting Tomato & Vegetable Greenhouse - 36-Cell, 50mm Pellets

Start Seeds Successfully Indoors with the Jiffy 36-Cell Greenhouse Kit

The Jiffy 36-Cell Greenhouse Kit makes it easy to get larger-rooted plants like tomatoes, peppers, and other vegetables that need extra root room from the start. Each kit includes 36 biodegradable 50mm peat pellets in a watertight tray with a clear humidity dome - just add water to expand the pellets, sow your seeds, replace the dome, and let warmth and moisture do the rest. The 50mm peat pellets - larger than standard - give seedlings extra room to develop strong root systems before transplanting. When seedlings are ready, transplant the entire peat pellet directly into your final growing medium - the biodegradable netting and peat break down naturally, leaving roots undisturbed for faster establishment.

Key Features & Benefits

• 36 50mm Peat Pellet Cells - Ready-to-use compressed pellets expand when moistened to form a complete peat growing medium in each cell, providing ideal germination conditions right out of the box.
• Watertight Plastic Base Tray - Contains moisture and allows bottom watering to keep pellets evenly moist without overwatering individual cells.
• Clear Humidity Dome - Traps warmth and moisture during germination, creating a mini-greenhouse microclimate that accelerates seed sprouting and early seedling development.
• Biodegradable Peat Pellets - Netting derived from cornstarch and peat composition break down naturally in soil, allowing direct transplanting of pellet and seedling together with zero root disturbance.
• No Transplant Shock - Transplant the entire expanded pellet into your growing medium - roots remain intact and undisturbed for seamless transition to the next growth stage.

Who Should Use This

The Jiffy 36-Cell Greenhouse Kit is perfect for home gardeners, hobbyist cultivators, and small-scale growers who want a clean, convenient, and reliable way to start seeds indoors. Whether you are starting herbs on a windowsill, getting a head start on the vegetable season, or germinating flowers for transplant, this kit provides everything needed to get seedlings off to a strong start.

Compatibility

Compatible with all standard garden seeds. Peat pellets work best when kept consistently moist during germination - bottom watering via the tray is recommended. Place in a warm location (70-75 degrees F is ideal for most seeds) with the humidity dome in place until seeds sprout. Once seedlings emerge, remove the dome and provide adequate light. Transplant when the root system is well-established and roots begin showing through the pellet netting.

Frequently Asked Questions

How much water do I add to expand the peat pellets?

Add water gradually to the tray until all pellets are fully expanded - they will rise up to 7 times their compressed height. Allow about 10 minutes for full expansion, then drain any excess water from the tray before sowing seeds. Keeping the base tray with a small amount of water allows the pellets to wick moisture as needed.

When should I remove the humidity dome?

Keep the dome on until the majority of seeds have sprouted and the first true leaves begin to appear. Venting the dome slightly helps prevent mold once seedlings emerge. Remove the dome entirely once seedlings are a few centimeters tall and ready for full light exposure.

Can I plant the entire peat pellet directly into the ground?

Yes - this is one of the key advantages of Jiffy peat pellets. The biodegradable cornstarch netting and peat composition break down in moist soil, allowing roots to continue growing without disturbance. Lightly score the netting or tear it slightly at the bottom before transplanting to accelerate breakdown.

Can I reuse this greenhouse kit for a second batch of seedlings?

The watertight tray and clear dome can be rinsed and reused. New peat pellets (sold separately) are needed for each batch of seedlings, as the original pellets are transplanted along with the seedlings and are not recoverable.