Growing Fruits and Large Veggies on Your Farmstand
Fruiting plants and larger vegetables like tomatoes, peppers, cucumbers, strawberries, broccoli and cauliflower require more attention over a longer growing period for successful harvests compared to lettuces, leafy greens, and herbs. Fruits and large vegetables are considered advanced varieties—meaning they require extra care with water quality, environment, pest control and pruning. This is especially true when growing indoors.
To set yourself up for success, review our Troubleshooting Plant Health and confirm your farmstand setup is well-balanced.
Core Basics to Remember
- Keep your water pH between 5.5–6.5. Extended periods below 5.0 or above 7.0 block nutrient uptake.
- Perform a water change every 6–8 weeks. Waiting longer will result in nutrient imbalances.
- Fully disassemble and clean all Farmstand parts at least 2–3 times per year. This will help avoid algae, bacteria and fungal development. Consider doing this just before planting advanced varieties.
- Top off with cool/ room temp water regularly; even 1 gallon weekly can help prevent nutrient imbalance and algae.
- Only add nutrients when adding at least 1 gallon of water. Adding nutrients without water creates imbalances.
Water quality is the most important factor in hydroponics. Fruiting plants grow for several months before harvest, so maintaining consistent pH, nutrients, temperature, and cleanliness is critical. Large plants (tomatoes, cucumbers, broccoli, etc.) also drink much more water than smaller greens, so check your tank water level frequently — especially in warm weather. Consider purchasing an eC pen to more easily monitor the strength of your nutrient solution over time.
Growing Indoors
When growing indoors, you can provide a consistent and controlled environment—which most of our seedling menu will love—but not every plant thrives inside. Some varieties have specific environmental requirements that can be difficult or uncomfortable to replicate indoors.
For example, cool-weather crops like cabbage grow best between 50–65°F, which is often too cold to maintain comfortably in a home. Other plants, such as cherry tomatoes or broccoli, need extremely high light levels that are best supplied by full, natural sunlight.
This is why, on our seedling page, we ask you to select your growing environment. We strongly recommend that you do not attempt to grow outdoor-only varieties indoors unless you have previous experience doing so.
Great indoor options: Lettuces, herbs, and leafy greens are excellent indoor growers. They are less demanding and don't require the intense light or specialized conditions that fruiting varieties do..
Indoor Fruiting Varieties
The following fruiting varieties can be grown indoors, but will still require special care and attention:
- Peppers
- Strawberries
- Dwarf tomatoes
- Peas
- Green beans
Tips for growing fruiting varieties indoors
If you’re excited to try your hand at growing fruiting plants inside, here are a few key tips:
Provide airflow. Place a fan a few feet from your stand (ideally oscillating) so the leaves of your plants gently move. This improves plant health and supports pollination. Without proper pollination, flowers won’t produce fruit.
Prune excessive growth. Pruning is important for many reasons, including increasing airflow, reducing pest risk, and ensuring all plants have sufficient access to light. (See below for additional details on pruning first flowers.)
Keep pests at bay. Pests love flowers and fruits as much as we do. They also become more established with longer grow times, often associated with fruiting or advanced varieties. See our Pest ID and Management for more detailed info. If you see any pest activity on your indoor Farmstand, respond immediately with natural pest control methods, such as our Plant Defense Kit.
Keep temperatures slightly cool. Cooler nighttime temperatures—around 60–65°F—help encourage strong flowering and fruit development. Strawberries in particular become sweeter when grown in these cooler conditions.
Pay extra attention to your water. Water quality is always the most important variable in hydroponics, and it becomes even more critical when growing advanced varieties. Keep your pH in check and perform a full water change every 6–8 weeks to ensure a good nutrient balance.
Long Grow Times
Fruiting plants take patience and our seedlings give you a one-month head start! After you plant your seedlings, below are excepted timelines before a first harvest:
- Hot peppers: ~4 months
- Sweet peppers: ~3-4 months
- Strawberries: ~3-4 months
- Tomatoes: ~3-4 months
-
Broccoli: 3 months
- Cauliflower: 3-4 months
-
Cabbage: ~3 months
- Cucumbers: ~2 months
- Zucchinis: ~2 months
Pruning for Success
Pruning is especially helpful with fruiting varieties. See our Pruning Guide for general info.
Key tip: prune off the first flowers your plant produces.
- Plants grow in three stages: vegetative (leaves, stems, roots), flowering, and fruiting
- Flowers and fruit demand lots of energy, often too soon
- Removing the first flowers (usually in the first month) allows the plant to build strong roots and foliage before fruiting
- A stronger foundation leads to healthier plants and bigger harvests
- Also prune off any brown or yellow leaves regularly.
Trellis & Support
Large fruits can weigh down plants, sometimes causing stems to break. Pruning the first flowers helps strengthen plants so they can support themselves, but additional support is often needed.
Keeping foliage off the ground reduces pests and disease, improves airflow, and makes harvesting easier. Use tomato cages, twine, or other supports to keep plants upright.
Pollination
Plants produce fruit only after their flowers are properly pollinated.
Outdoors, wind and beneficial insects will usually do this work for you — though high heat and humidity can hinder pollination. If you are growing indoors, you can recreate the effect of wind by placing a gentle oscillating fan near your Farmstand.
If you are growing outdoors in hot, humid conditions, or growing indoors and want to ensure pollination of all plants, you can assist by pollinating by hand. Gently shake flowering plants to release pollen, then use your fingers or a small tool like a toothbrush or cotton swab to transfer pollen between flowers, applying it to the center of each flower.
Troubleshooting
If you are growing fruiting varieties and your plants are struggling, review our Troubleshooting guide as a first step.
- If you are growing indoors, confirm that your plant varieties are suitable for indoor growing.
- If a plant appears healthy but is not bearing fruit or vegetables, check the growing times above—more time may be the only thing needed!
- If your plants have been growing for over 6 weeks and there are no signs at all of fruits starting to form, try hand pollinating when new flowers appear.
If you have completed the above troubleshooting steps and still have questions, don’t hesitate to contact us. Let us know what you've already tried so we can get you the right answers quickly — pictures always help!