pruning tomatoes

Tomato 101

Tomato 101

By Jim Hole

There’s no shock as to why tomatoes are so well-loved. Whether it be salsas, sauces or salads, their versatility is unmatched by other garden vegetables. Tomatoes are actually quite simple to grow with the right technique, patience and care. This “Tomato 101” will send you on your way to producing a bountiful yield of this summer favourite.

Varieties

With the vast number of tomato varieties, it’s easy to feel overwhelmed. For cherry tomatoes, some of my favourites include Sun Gold, Minimato and Rapunzel. For eating tomatoes, Primo Red, Mortgage Lifter and Stupice. And of course for cooking, be sure to try San Marzano, Mamma Mia and Sunrise Sauce. Stock up on your favourite varieties soon–as many sell out fast!

Soil

Proper soil is crucial for a successful tomato yield. It may be tempting to purchase the “cheap stuff” at your big box stores, but these brands lack the richness needed for tomatoes to thrive. Soils lose organic matter if it is not added back in regularly, so my recommendation is using a 1:1 ratio of Sea Soil and Jim’s Potting Soil. Avoid using manure in your soil as the salt content per bag is inconsistent. More often than not, you will end up scorching your plants and be forced to start over.

Fertilizer

Tomatoes are heavy feeders, which means it is important to fertilize them regularly. I recommend using Garden Pro Tomato Food (5-10-5). This granular fertilizer is also supplemented with calcium to prevent “blossom-end rot”. Simply mix Garden Pro Tomato Food in with your soil and water thoroughly. Another product I like to use on my tomatoes is Epsom Salts. Epsom Salts contain magnesium and can be applied every couple of weeks.

Watering

We often have customers come to the greenhouse with wilted leaves, brittle stems and yellowing tips. After a quick look, I know they aren’t watering enough. I use the analogy of filling up your car with gas to help explain the importance of watering. When you go to the gas station, you don’t put $5 worth in your car, drive till it’s empty, fill up $5 worth again and so on. The same goes for watering your tomato plants. When you water, ensure that you water the entire root zone completely with a good soaking.

Weed Control

There is nothing more frustrating than pouring time and energy into your garden, only to have it scattered with weeds. Not only are they an eye sore, but they also draw the essential nutrients out of your soil, leaving nothing for your tomatoes. Before you plant, I recommend encouraging the weeds to grow–watering like you would for any garden. Once they are a mature size, spray the soil with Bye Bye Weed to kill off any vegetation that is present. Wait 7 days, and plant your garden as you normally would. NEVER APPLY BYE BYE WEED TO YOUR GARDEN PLANTS. IT IS RESTRICTED TO APPLICATION ON WEEDS ONLY. Pulling weeds throughout the summer is an obvious technique for eliminating weeds, but spraying saves you the headache altogether. 

Pruning

Tomatoes come in two growth types–determinate and indeterminate. Determinate tomatoes usually grow wider, do not need pruning and grow well in a cage. Whereas indeterminate tomatoes grow tall, require staking and pruning, but usually have higher yields than determinate varieties. Pruning indeterminate tomatoes is quite easy–simply pinch off the shoots or “suckers” that grow out from the stems. This redirects energy to the fruit of the plant rather than the shoots. In turn, this produces much larger, healthier tomatoes. Watch our video on how to prune tomatoes here: www.holesonline.com/blog/how-to-prune-tomato-plants.

 

Still not feeling quite confident on growing your own tomatoes? Be sure to check out our e-book on tomatoes at www.holesonline.com/ebooks/tomato-favourites.

Q: What causes black or brown rotten spots on the bottom of my tomatoes?

A: This condition is called “blossom-end rot” and it is caused by water stress and calcium deficiency due to heavy clay soil or irregular/inadequate watering. Watering regularly is key to preventing blossom-end rot. Even if the soil contains lots of calcium, without sufficient water, the plant cannot absorb essential minerals.