Replacement Planting Block for 8 Mega-cell Dome Seed Starting Kit

Replacement for Mega 8-Cell (White)
Item #90540


Keep your Mega-cell Dome working season after season, fill with replacement mega-cell sponges

Your 8 Mega-cell Dome Seed Starting Kit is made for a lifetime of use, so keep it growing its best with this replacement planting block and sponge set. Containing 8 mega-cell sponges, and a replacement block that fits perfectly into the climate controlled seed starting environment of the 8 Mega-cell Dome Seed Starting Kit.

This amazing 8 Mega-cell Dome Seed Starting Kit takes all the marvels of the Bio Dome design and magnifies them into a size suitable for rooted cuttings, half-grown plants, plant divisions, and more. It not only starts seeds and grows big, healthy seedlings, also root cuttings.

The 8 Mega-cell Dome Seed Starting Kit is a humidity controlled, bottom-watering tray along the same principle as our classic Bio Dome. The cells here measure 3 inches in height and 2¾ inches in diameter at the top (their widest point). They are made of the same premium bio sponge material as the original Bio Dome, thus providing optimal aeration for the roots.

The material and the shape of the cells encourage the roots to grown downwards rather than spiraling or remaining near the surface. By the time they leave the Mega Dome, your plants are in great shape for transplant into their permanent container or the garden.

This pre-formed Replacement Planting Block can be washed and re-used almost endlessly. It fits into a deep plastic tray, with room at the base for water and seedling food. The tray fits neatly below a clear plastic humidity dome that features a circular, adjustable vent for premium climate control. Everything is in place for the best seed starting and growing on experience of your gardening career.


Skip Product Specs
Item Form Accessories
Color (White)
Size Replacement for Mega 8-Cell
Additional Characteristics Seed Starting
Occasion All Occasion
Recipient Gifts for Gardeners
Restrictions *Due to state restrictions we cannot ship to the following:
Canada, Guam, Puerto Rico, Virgin Islands

Product Review Summary

Based on 1 review
The average rating for this product is 5 out of 5 stars
Overall Rating: 5.0/5.0

Customer Reviews

January 08, 2019

Great for Growing Longer Before Planting

This shopper rated the product 5 out of 5 stars

I bought these for a few seed starts that were going to grow for 6 to 8 weeks prior setting out. They worked great. They provided the extra room that the roots needed for extra weeks of growth and were easy to plant in the garden.

BC from WA

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