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The 10 Top Tips for Growing Tomatoes

Updated: Jan 24, 2022

Tomatoes plants can be finicky to grow and there is much to be learned before becoming an expert at growing tomatoes. Let's look at 10 top tips for growing tomatoes in your backyard vegetable garden, in a pot or in a greenhouse in the zones 2 - 4 growing climates from someone who has struggled with growing tomatoes in Calgary, Alberta herself. Here are tips for how to grow more, tastier and larger tomatoes in your own backyard.


Growing tomatoes in gardening zone 2 - 4 of Calgary Alberta can be a challenge.  Find the top tips for growing large roma and cherry tomatoes from seed in a greenhouse, your vegetable garden or in a pot.

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Tip # 1 - Start Tomatoes From Seed Early


Tomatoes need to be seeded early in the year or purchased already started to be able to grow to maturity and bear fruit prior to our early fall frost. Seed your tomatoes around the beginning of March. (Find my free printable zone 3 seeding chart here.) Aim to have your tomato plants just beginning to bloom by the end of May to allow time for fruit to grow and ripen during the short zone 3 growing season.


Zappa Seeds has a beautiful variety of non GMO tomato seeds including some of my favourites; Beefsteak, Oxheart and Roma.


When moving your tomatoes from indoors to outdoors carefully harden them off to prevent shock.


Growing tomatoes in gardening zone 2 - 4 of Calgary Alberta can be a challenge.  Find the top tips for growing large roma and cherry tomatoes from seed in a greenhouse, your vegetable garden or in a pot.

Tip # 2 - Transplant Tomatoes Deep


Tomatoes can be transplanted to a soil level deeper than they previously were growing. Tomato plants are unique in that they easily grow roots all up the stem once it is placed in soil. Plant the long stem of tomato seedlings up to the first set of leaves. (Also check out my post How to Fix Leggy Seedlings.) If you plant a number of tomato seeds together in