Is a portable greenhouse the best weapon in a spring garden? My friend Kate, who grew up in Wisconsin where the growing season is very short, recommends germinating seeds in a mini greenhouse on a trolley that you can move to follow the sun.
A Portable Wooden Cold Frame Greenhouse by Giantex measures 35.4 by 31.3 by 23 inches and, as shown in the top photo, has hinged lids; $86.99 from Glow Home Decor.
An Aluminium Frame Greenhouse measures 100 by 100 centimeters (about 39 by 39 inches) and has a double-sided lid.
A mini Tabletop Greenhouse has a vented cover; $19.95 from Gardener’s Supply.
A portable Wooden Greenhouse measures 35.4 by 19.3 by 40.5 inches and has a foldable lid and a storage shelf; $58.99 from Amazon.
Slightly larger than the model shown above, a four-lidded, waterproof aluminum Cold Frame greenhouse is £40.99 from Mano Mano.
A Compact Convertible Garden Greenhouse & Lattice Kit designed by inventor and Shark Tank cast member Lori Greiner is 36 inches long and can be reconfigured as a trellis during warm months when you don’t need a greenhouse; it is $59.99 at Amazon.
A waterproof square PlantHouse Portable Greenhouse is available in five sizes (24 to 60 square inches) and comes with stakes to secure it to the ground.
A two-tier Portable Greenhouse with wheels (and lockable brakes) has a tear-proof PVC cover and is $39.99 from Amazon.