Those are two of the best container crops for a sunny balcony. Since they like similar conditions, they're a great pairing for a salsa garden.
Tomatoes
Cherry tomatoes are the easiest and most productive in containers, but many patio-sized slicing or paste tomatoes also do well.
- Use a 5–10 gallon container for each plant.
- Give them a sturdy tomato cage or stake when you plant them.
- Aim for 8+ hours of direct sun if possible.
- Water deeply whenever the top inch of potting mix feels dry. Try to keep the moisture consistent—letting the soil swing between very dry and very wet can lead to cracked fruit or blossom end rot.
- Fertilize regularly once flowers appear. A fertilizer that's not excessively high in nitrogen will encourage fruit production rather than just leafy growth.
Jalapeños
Jalapeños are naturally well-suited to pots.
- A 3–5 gallon container is usually enough for one plant.
- They also love full sun and warm temperatures.
- Let the soil dry slightly between waterings—peppers generally prefer a bit less water than tomatoes.
- Pick peppers regularly to encourage the plant to keep producing.
Can they share a pot?
It's better to give each plant its own container. Tomatoes develop large root systems and can crowd peppers if they're planted together.
Make your own salsa garden
Besides tomatoes and jalapeños, consider adding:
- Cilantro (best in spring or fall, since it bolts in hot weather)
- Green onions
- Garlic chives
- Compact onions or scallions
- Basil (not traditional in salsa, but it grows beautifully alongside tomatoes)
A few container-specific tricks
- Dark-colored pots heat up quickly. If your balcony gets very hot in summer, lighter-colored containers or fabric grow bags can help keep roots cooler.
- Place a layer of mulch (such as shredded bark or straw) on top of the potting mix to reduce evaporation.
- Rotate pots every week or two if one side gets more sun, so plants grow more evenly.
- Harvest tomatoes when they're fully colored and slightly soft to the touch. Jalapeños can be picked green for a bright, crisp flavor or left to ripen red for a sweeter, slightly hotter pepper.
With just one tomato plant and one jalapeño plant, it's common to harvest enough over the season for multiple batches of fresh salsa. If you have room for two tomato plants and two jalapeños, you'll likely have a much steadier supply for fresh eating, salsa, and preserving.