Question 1

What is the easiest thing to grow indoors as a complete beginner?

Accepted Answer

Radish microgreens, loose-leaf lettuce and chives. Microgreens are ready in 6-10 days, lettuce gives a first cut in about a month, and chives tolerate almost any neglect. All three teach you watering and light without a long wait.

Question 2

How much does a starter indoor garden cost?

Accepted Answer

A workable first setup is a 6-inch pot with drainage, a bag of peat-free potting mix, one seed packet and a saucer — roughly the price of two grocery store herb pots. A small full-spectrum LED and a plug-in timer are the only other purchases worth making early, and only if your light is poor.

Question 3

Do I need a grow light, or is a window enough?

Accepted Answer

A south or west-facing window with several hours of direct sun will carry herbs and salad greens through spring and summer. North-facing rooms, winter months, and any fruiting crop such as tomatoes or peppers need a grow light running 12-16 hours a day.

Question 4

Can I use soil from the garden in my pots?

Accepted Answer

No. Garden soil compacts in containers, drains badly and can bring pests and weed seeds indoors. Use a peat-free potting or container mix, ideally with about one part perlite added to four parts mix.

Question 5

How many hours a day should a grow light run?

Accepted Answer

Seedlings 14-16 hours, herbs and salad greens 12-14 hours, fruiting crops 14-16 hours. Always leave at least 6-8 hours of darkness — running lights around the clock stresses most crops and does not speed growth.

Question 6

How far above my plants should the light sit?

Accepted Answer

About 6-8 inches over seedling trays, 8-12 inches over herbs and salad, and 10-12 inches over fruiting plants. Then adjust by watching: stretching stems mean raise the hours or lower the light; bleached, curling tips directly underneath mean raise it 2-4 inches.

Question 7

Why are my plants tall, pale and leaning over?

Accepted Answer

That is stretching, and it almost always means too little light. Move the pot within 12 inches of the glass or lower the LED, increase the daily hours, and pinch the stretched growth back to a healthy leaf pair so compact growth replaces it.

Question 8

Can I grow anything in a north-facing apartment?

Accepted Answer

Yes — mint, parsley, chives, lettuce, arugula, pak choi and microgreens all cope with low light, especially with a modest LED running 14 hours. Tomatoes, peppers, chiles and rosemary will survive but rarely produce anything worth eating without a fruiting-strength fixture.

Question 9

How often should I water an indoor garden?

Accepted Answer

There is no fixed schedule. Push a finger 1 inch into the mix; water thoroughly only when it is dry at that depth, then empty the saucer after ten minutes. In practice that is every 1-2 days for a summer herb pot and every 4-7 days for the same pot in a cool winter room.

Question 10

How can I tell overwatering from underwatering?

Accepted Answer

Both end in wilting. An underwatered pot feels light and dry and perks up within hours of a soak. An overwatered pot stays heavy and damp, sheds yellowing lower leaves, may smell sour, and does not recover after watering — stop watering and let it dry down.

Question 11

Do my pots really need drainage holes?

Accepted Answer

Yes. A layer of gravel in a sealed pot does not substitute for drainage; it just raises the waterlogged zone. Either drill holes or use a plastic nursery pot with holes inside the decorative container.

Question 12

Do I need to feed my plants, and when?

Accepted Answer

Most bagged potting mixes carry four to six weeks of nutrients. From week five, feed with a balanced liquid fertiliser at half the label strength every couple of weeks during active growth, and halve or stop it in low-light winter months.

Question 13

How long do common indoor crops take to harvest?

Accepted Answer

Radish microgreens 6-8 days, pea shoots 10-14 days, arugula 21-28 days, loose-leaf lettuce 30-45 days, radishes 25-35 days, and a dwarf tomato 60-80 days to its first ripe fruit under a strong light.

Question 14

Can tomatoes and peppers really fruit indoors?

Accepted Answer

Dwarf varieties can, with a strong full-spectrum light 14-16 hours a day, a 10- to 12-inch pot, and daily hand-pollination — flick each open flower with a finger, since there is no wind or insect traffic indoors.

Question 15

How do I stop basil going leggy and dying?

Accepted Answer

Pinch the growing tip above the second leaf pair once it reaches 6 inches and repeat every two to three weeks, give it the brightest spot you have, and never remove more than a third of the plant at once.

Question 16

Can I save a crowded grocery store herb pot?

Accepted Answer

Usually. Split the rootball into three or four clumps, pot each into a 5-inch pot of fresh mix with a little perlite, water once, place under bright light and pinch every stem. About three weeks later you have several bushy plants instead of one exhausted clump.

Question 17

There is white fuzz on my microgreens — is it mold?

Accepted Answer

Fine white fuzz clinging only to the roots that vanishes when misted is normal root hair. Gray, cobwebby growth spreading across the surface is mold: add airflow with a small fan, water from the base of the tray, and sow less densely next time.

Question 18

How much space do I actually need?

Accepted Answer

A microgreens tray needs 8 x 12 inches of counter. Two herb pots and a salad pot fit on a 24- to 32-inch shelf. A three-shelf unit with everything on it occupies about 3 square feet of floor — roughly the footprint of a kitchen trash can.

Question 19

Can I set this up without drilling into walls?

Accepted Answer

Yes. Use a freestanding narrow shelving unit, clip or cable-tie LED bars to the underside of each shelf, line shelves with waterproof trays, and run every light into one timer plug. Nothing is fixed to the building.

Question 20

Will an indoor garden attract pests or make a mess?

Accepted Answer

Fungus gnats are the usual visitor and they breed in permanently wet surfaces, so letting the top 1 inch dry between waterings prevents most of them. Water at the sink and let pots drain for ten minutes before returning them to avoid spills entirely.

Indoor gardening FAQ

Getting started

Light and grow lights

Watering and soil

Herbs, vegetables and microgreens

Small spaces and renting

Still stuck on something?