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Tomatoes are America ’s favourite garden “ vegetable ” to arise . Botanically a fruit , the tomato plant was classify as a veg by a U.S. tariff police force in 1887 because it ’s typically served with dinner , not as dessert .

Today , there are more than 10,000 varieties in many shapes , sizes , and colour . Given the correct conditions — full sunlight , good ground , passable piss , drain , and tomato cage or other flora support — tomaato growingis pretty easy .

Mature woman in blue shirt prunes a tomato plant.

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Plant care includes right tomato plant dress to increase airflow , thereby reduce fungal problems , and to further efficient photosynthesis for better emergence and great take . But tiro gardeners are sometimes guilty of harmful tomato plant trimming mistakes that can damage the industrial plant and reduce the takings .

How to Prune a Tomato Plant

It might seem like there ’s a hunky-dory railway line between a perfectly pruned tomato plant industrial plant and an over - pruned Lycopersicon esculentum plant , but improper tomato pruning can leave in problems . “ When cut tomatoes , the lower leaves are the principal I to take out as these can touch the soil and invite diseases , ” say Samuel Davis , a horticulturist and the CEO ofLondon Gardeners . If you ’re not sure how to prune love apple plants or have had mixed solvent with tomato pruning in the past , read on for hint .

Simple Pruning

fool , which turn in the “ V ” between the independent stem and the limb , need to be crop to save Department of Energy for chief ramification ( and the yield they produce ) . Sucker pruning “ directs the energy produce by your plant into bring out fruit instead of an teemingness of foliage , ” says Davis . Suckering tomato plant also can prevent plants from crowding themselves and the infinite around them . love apple plant suckers grow cursorily ; if left to grow into side stems , they tend to be spindly and produce subscript yield . vellicate off chump on a Lycopersicon esculentum plant that are less than 2 inches long ) , but if they ’re large , pruner are necessary .

Missouri Pruning

This method acting is used when a tomato industrial plant has uprise large suckers . In Missouri pruning , a nurseryman pinch off or snips only the tip of the sucker , leave a twain of tomato plant leaves behind to help protect developing fruit from burn . In this state of affairs , slay just the steer is less of a jounce to the works than removing big side stems , particularly when the weather is live . The downside of using this method acting is that the stay portions of the suckers will grow new mark , requiring ongoing pruning .

Tomato Pruning Mistakes to Avoid

Trimming tomato plants is necessary for optimal tomato flora health and payoff , so do n’t be afraid to prune ! Just bang the proper way and time to snip a Lycopersicon esculentum plant to avoid damaging the plant life and jeopardize your harvest . Here are some mutual tomato pruning mistake to avoid .

1. Pruning determinate tomato plants.

Determinate tomato plantsdon’t need pruning , other than remotion of fool below the first flower cluster . Pruning above the first flower bunch results in loss of likely yield because determinate tomato works have a predetermine telephone number of bow , leave of absence , and flowers hardwired into their genic structure .

During a tomato plant ’s initial phase , all stems and most of the leaves imprint , creating a define pattern . After the plant flowers and sets final leafage expansion , there ’s no additional vegetative growth . “ Determinate varieties have been bred to grow to a certain size and then produce their entire fruit in a very short timeframe , ” enjoin Davis . Thus , there ’s no pauperization for extra pruning . Fewer cultivars are determinate types , but most determinates are more succinct and ask less staking . If you are unsure , just search thetomato varietyname on a reputable internet site .

2. Pruning when the plants are wet.

Pruning tomato flora when it ’s raining or when they ’re besotted promotes the banquet of disease — specifically , bacterial and fungal pathogen . One purpose of pruning tomatoes is to improve air circulation to thwart fungus . To further thin out chances of wet - have disease ( such as tomato blight , a soilborne disease that causes putrefaction ) , prune the low leave of the plant life if they are touching the soil , especially in pie-eyed climates where heavy rainfall saturates the soil .

3. Pruning with dull or dirty tools.

A trimmer , or garden clipper , is thebest tool to expend on tomato plants . These spring - loaded mitt tools can contract stems up to 1 inch in diam . After a time of year of pruning your tomato plants , clippers can collect scandal , moisture , sap , and junk , which cause them to become dull or rusty . They also can spread disease from one works to another . utilize a lubricating substance to the leaf blade helps prevent rusting and can make them well-off to apply .

Re - sharpen the blade with a knife sharpener ( or replace the blades ) control they ’ll give a clean cut . Dull blades will squash the stem rather than cut it , damage the stem tissue paper .

4. Waiting too long to prune.

“ Pruning should be bulge when the flora is still small to give it a head set forth during the growth time of year , ” say Davis . If you put off pruning tomato plant too long , those small suckers will mature into large , heavy branches that can count down the industrial plant , and prevent sunshine and atmosphere from getting to its fore . In addition , those sucker - turn - branches employ up a lot of the plant ’s muscularity that could have been diverted to producing more and bigger fruit . Be indisputable to “ rationalise very betimes in the morning , ” Davis suppose , when plant are ironic .

5. Over-pruning.

Over - pruning absent too many shade - produce leaves , resulting in the fruit being reveal to the blistering Lord’s Day , causing sun scald . “ Over - pruning stresses the plant , decoct photosynthesis , and final result in low output with an increase in disease , ” says Davis . “ The headstone is to take up a balance in this tug - of - state of war - prune enough to keep them growing and producing healthily , but not so much ( that ) you stress them out . ”

off more than one - third of the foliage at a time can do more than burn the yield ; it can result in the plant dying . Instead , prune tomato plant plants lightly after they eat up setting yield to keep the plants small and encourage new maturation , which conduct to more flowering and fruiting .

Hint : Tomatoes do n’t mark fruit in exceedingly hot temperatures , so the shade from those branches ( and maybe some nicety material ) can cool down the tomato plant .

Person pulling a sucker off a tomato plant.

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6. Not topping the main stems at the end of the growing season.

When sentence is scarper out near the end of the growing season , topping the maturate tip will redirect the sugar the plant is make to the setting fruit . It should be done about 30 daysbefore the first frostfor best termination .

Called “ topping the plant , ” it affect pruning the end shoot just above the last flush , and will help reach a bigger harvest of cherry-red Lycopersicon esculentum , as opposed to mostly green tomato as the season winds down . Your pruning will serve develop fruit get the nutrient that would have proceed into new growth , which is unneeded this lately in the growing season .

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Three damp red tomatoes hanging on a vine.

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Ripe tomatoes growing on too heaving stems that need prunes.

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Green tomato plant with few leaves to protect from sun exposure.

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