🍅 The Secret to Big, Juicy Tomatoes? Here’s What I Do with Suckers (Hint: You Don’t Have To)

📋Rooted Field Note: 05

When I first started growing tomatoes, I was overwhelmed by all the advice out there. “Prune the suckers!” “Leave the suckers!” “Single-stem your tomatoes!” I had no clue what a tomato sucker even was, much less what to do about it. Over time, through trial and error (and a lot of muddy hands), I found what works for me. So today, I’m not here to tell you what you should do. I’m just sharing what I do with my indeterminate tomatoes and why it works in my garden. If you’re just starting out, hopefully this gives you a bit of insight – and maybe even encourages you to experiment and find your own style.

🌿 What on Earth Is a Tomato Sucker?

If you’re scratching your head, I get it – I was there too. Tomato suckers are those little shoots that sprout in the “V” where a leaf meets the main stem. They look like tiny baby branches. On indeterminate tomato plants (the vining kind that just keep growing), these suckers can eventually turn into full branches with their own leaves, flowers, and fruit.

But here’s the thing: when the plant pours energy into growing all those extra branches, it can mean smaller tomatoes and a wilder, more tangled plant. Some gardeners pinch them off to “train” the plant and focus its energy. Others let them grow freely for a bushier plant with more (but usually smaller) tomatoes.

✂️ How I Handle Tomato Suckers

Here’s what I do with my indeterminate tomatoes:

1. I Start Early. As soon as the plant is about a foot tall and I see those little shoots forming, I start checking for suckers.
2. I Pinch the Small Ones. If the sucker is less than 4 inches long, I just pinch it off with my fingers. It’s quick and easy.
3. I Cut the Bigger Ones. For anything thicker than a pencil, I use clean pruners to snip them off close to the main stem. (Don’t forget to clean your tools with rubbing alcohol to prevent disease spread!)
4. I Prune Gradually. I never strip the plant bare. I focus on removing the suckers below the first flower cluster and leave the upper ones to grow a bit if I feel the plant can handle it.
5. I Stay Consistent. I check my plants once a week (more often if it’s rainy) and pinch off any new suckers I find. It’s a lot easier to keep up with them when they’re small.

🌞 Why I Prune (But Not Too Much)

I prune suckers mainly to keep my plants manageable and healthy. With fewer branches competing for resources, the tomatoes I get tend to be bigger, juicier, and ripen a bit earlier. Plus, by thinning out some of the foliage, I give the plant better airflow, which reduces the risk of diseases like blight.

That said, I’m careful not to overdo it. I always leave enough leaves to protect the fruit from sunscald (no one wants sunburned tomatoes!). And honestly, I’m not aiming for “Instagram-perfect” plants – I’m just trying to grow tomatoes I can actually eat.

🌱 The Trade-Offs – And Why It’s Okay to Experiment

Here’s the thing: pruning isn’t a magic bullet. It’s just one tool in the toolbox. If you don’t prune at all, you’ll probably get more fruit, but they might be smaller and ripen a bit later. If you prune too much, you could end up with fewer fruits overall. I aim for a balance – prune enough to keep the plant healthy and productive, but not so much that it stresses the plant or leaves it vulnerable.

💧 Watering and Feeding: Keeping My Plants Happy

Pruning is just one part of the puzzle. To keep my tomatoes thriving, I focus on:

• Watering Deeply: I water at the base of the plant, soaking the soil deeply once or twice a week. This encourages deep roots and helps the plant handle hot summer days.
• Avoiding Wet Foliage: I use drip irrigation or a soaker hose (or just aim low with my watering can) to keep leaves dry and reduce disease risk.
• Feeding Wisely: I avoid overdoing it on nitrogen-rich fertilizers, which can make the plant grow tons of leaves and suckers. Instead, I use a balanced or slightly phosphorus-heavy fertilizer like this organic tomato fertilizer. I apply it at planting time, when the first fruits set, and again after a big harvest to keep the plant productive.

🏡 My Setup: Simple, Effective, and Beginner-Friendly

Here’s my setup: I use a single or double stem approach for my indeterminate tomatoes. I remove suckers below the first flower cluster and tie the main stem(s) to a tall stake or cage as they grow. I mulch around the base with straw or wood chips to keep the wanted moisture in and the unwanted weeds out. And I check for new suckers every week or so. That’s it!

I’m not chasing perfection – just healthy plants that give me a steady supply of delicious tomatoes all season long. And if I miss a sucker or two, no big deal – I just let it grow and see what happens.

🤝 My Two Cents

If you’re just starting out, I encourage you to experiment. Try pruning one plant and leaving another unpruned. See what works best for you, your garden, and your climate. Gardening isn’t about following rigid rules – it’s about learning, observing, and adapting.

And remember, you don’t have to do exactly what I do. I’m just sharing what works for me, in my garden, with my tomato plants. Whether you decide to prune every sucker or let your tomatoes go wild, you’ll learn something along the way. 🌿

🌟 PS: I’ve linked a few of my favorite tools and fertilizers throughout this post. These are affiliate links, which means I might earn a small commission if you decide to buy through them, at no extra cost to you. It’s a simple way to support my gardening adventures while you grow your own!