FEATURE: What You Need to Start and Grow Tomatoes Indoors
In the northern hemisphere, summer has turned to fall (and in some cases, winter.) But tomato gardeners need not despair! You can continue to enjoy fresh, luscious tomatoes throughout the cold months by growing them indoors.
You need just a few things …
A windowsill, grow lights, or a greenhouse. All three can work.
Indoor tomatoes require 12-16 hours of light a day. Even plants in a sunny window or in a greenhouse may need a few extra hours under grow
lights during winter's short days.
Indoor tomatoes grow best when the air temperature is between 65º-85ºF. If your house thermostat is set lower, your house is drafty, or your greenhouse isn't heated, keep plants warm with a space heater or seedling heat mat.
The right variety
Cherry or plum tomato indeterminate varieties perform best indoors. Small fruited plants (cherry or plum tomatoes) produce a large number of fruit and ripen quickly. Indeterminates continue to grow throughout the winter and will produce fruit in abundance.
Deep-root growing kits … quick start seed kits … special potting mixes. Yep, there's a kit for that!
We love how you can get replacement parts for seed starting trays, too. Our good friends at Gardener's Supply have all kinds of seed starting gear and will answer your questions, too.
Best Tips for Growing Tomatoes
The world's number one tomato Bible. Advice on 1300 varieties, soil preparation, pruning; and extensive help with pests and diseases from a leading industry expert to help you have the biggest, tastiest crop ever.
Tomato Growing Tip: Make Sure Your Grow Lights Are Adjustable