Early Girl Tomato in Zone 5A — Great Plains

Early Girl Tomato is a fantastic choice for Great Plains gardeners. It delivers that classic tomato flavor we crave, perfect for fresh eating, canning, or adding to your favorite summer dishes. The real win is its early maturity – crucial for getting a good harvest in our shorter growing season and enjoying homegrown tomatoes before the first hint of fall.

Our region's extreme weather can be tough on tomatoes, with temperature swings, strong winds, and the ever-present hail risk. But with a little planning and attention to timing, Early Girl can thrive here. With our 168-day growing season, you can certainly get a good harvest if you start smart.

Starting Early Girl Tomato seeds indoors from late March through mid April gives them a head start. That's about 6 weeks before you'll want to put them outside. Use seed trays or small pots filled with a good seed-starting mix. Provide warmth – a heat mat is helpful – and plenty of light.

Set up your lights to be just a few inches above the soil surface, and raise them as the seedlings grow. Bottom watering is an easy way to keep the soil evenly moist without damping off. Keep in mind our spring weather can be unpredictable, so be ready to adjust your indoor growing setup as needed.

Transplant your Early Girl Tomato seedlings outdoors from early May through mid June, after the last expected frost. Before planting, harden off your seedlings by gradually exposing them to outdoor conditions for about a week. This helps them adjust to the sun and wind.

Space the plants 24-36 inches apart to give them room to grow. Keep an eye on the forecast during this period; late frosts or sudden temperature drops can still happen. Protect your young plants with row covers if needed.

Early Girl Tomatoes need consistent moisture, especially in our hot Plains summers. They aren't drought-tolerant, so don't let them dry out completely. A regular watering schedule is key for steady fruit production and preventing problems like blossom end rot.

During the hottest part of the summer, you'll likely need to water deeply a couple of times a week. Use the finger test – stick your finger into the soil about 2 inches deep. If it feels dry, it's time to water. Aim for about 1-2 inches of water per week, depending on rainfall. Water at the base of the plant to avoid getting the leaves wet, as our low-to-moderate humidity can still encourage some fungal issues.

If the leaves are wilting and the soil is dry, you're underwatering. If the leaves are yellowing and the soil is soggy, you're overwatering. A good layer of mulch, like straw or wood chips, can help retain moisture and regulate soil temperature.

Early Girl Tomatoes are indeterminate, meaning they'll keep growing and producing all season. They definitely need support. Cages or stakes work well to keep the plants upright and prevent the fruit from touching the ground.

Install your chosen support at planting time to avoid disturbing the roots later. Standard 5-foot cages are usually sufficient. As the plant grows, weave the stems through the cage or tie them to the stake with soft twine. Given our windy conditions, make sure your support is sturdy and well-anchored.

Pruning Early Girl Tomatoes can help improve air circulation and encourage earlier ripening, which is a plus in our shorter season. Focus on removing suckers – the small shoots that grow in the "V" between the main stem and branches. Remove the ones low on the plant.

Prune these suckers early in the morning on a dry day to allow the cuts to heal quickly. As the end of the season approaches (first frost around early October), you can also prune the top of the plant to encourage the remaining fruit to ripen. This redirects the plant's energy to the existing tomatoes.

You can expect your first Early Girl Tomato harvest from late June through late August, depending on when you transplanted. The fruits are ready to pick when they turn a deep red color and are slightly soft to the touch. Don't wait too long, or they might crack.

Gently twist or cut the tomato from the vine, being careful not to damage the plant. Regular harvesting encourages continued production. As the first frost approaches in early October, harvest any remaining green tomatoes and bring them indoors to ripen. They'll still taste great.

Here are some common problems to watch out for with Early Girl Tomatoes in the Great Plains:

• Blossom End Rot
• What it looks like: A sunken, dark brown or black leathery patch on the bottom of the fruit. It often affects the first fruits of the season.
• What causes it: Calcium deficiency caused by inconsistent watering. This isn't a disease, but a nutrient uptake problem triggered by our drought/flood cycles.
• How to fix/prevent it: Water consistently (the single most effective fix). Mulch heavily to maintain even soil moisture. Don't over-fertilize with nitrogen. Remove affected fruit.
• Early Blight
• What it looks like: Brown spots with concentric rings (target or bullseye pattern) on lower leaves first, spreading upward. Leaves yellow and drop.
• What causes it: Fungal disease (Alternaria solani) that thrives in warm, humid conditions. It spreads via soil splash onto lower leaves.
• How to fix/prevent it: Remove and destroy affected leaves (don't compost). Mulch to prevent soil splash. Water at the base, not overhead. Improve air circulation through spacing and pruning. Copper fungicide slows spread. Rotate crops yearly.
• Hornworms
• What it looks like: Large sections of leaves stripped overnight. Look for large (up to 4 inches) green caterpillars with white diagonal stripes. Dark droppings on leaves below.
• What causes it: Larvae of hawk moths. Eggs are laid on tomato family plants. The caterpillars feed voraciously and can defoliate plants quickly.
• How to fix/prevent it: Handpick them (they don't bite). Bt (Bacillus thuringiensis) spray is effective and organic. If you see white cocoons on a hornworm, leave it — those are parasitic wasp eggs that will kill it and produce more beneficial wasps.
• Cracking
• What it looks like: Splits in tomato skin – either concentric (circles around stem) or radial (lines radiating from stem). It can expose flesh to rot.
• What causes it: Heavy watering or rain after a dry spell. Fruit absorbs water faster than skin can expand. Some varieties are more prone than others.
• How to fix/prevent it: Water consistently to avoid the dry/wet cycle. Mulch to maintain even moisture. Harvest promptly when ripe.

Great Plains Specific Challenges: Our hot summers, low-to-moderate humidity, and variable rainfall can create a challenging environment for Early Girl Tomatoes. Consistent watering is especially critical to prevent blossom end rot and cracking. Keep a close eye on your plants and adjust your care as needed.

Companion planting can help your Early Girl Tomatoes thrive. Basil is a great companion because it repels tomato hornworms and other pests. Carrots improve soil drainage and aeration, which benefits tomato roots. Parsley attracts beneficial insects that prey on tomato pests. French marigolds deter nematodes and other soil pests.

Avoid planting brassicas (cabbage, broccoli, cauliflower) near tomatoes, as they can stunt tomato growth. Fennel inhibits the growth of many plants, including tomatoes. Corn can block sunlight and compete for nutrients and water, which isn't ideal in our Plains climate where resources can be limited.