Last Updated on October 9, 2026

How Many Tomatillo Plants per Square Foot?

1 tomatillo plant per 4 square feet: one plant in the center of a 2 x 2 foot block, so plants sit 24 inches apart, staked or caged. Plant at least two, because tomatillos are not self-fruitful and need a second plant to set fruit. That makes the smallest real tomatillo patch two blocks, 8 squares.

The spacing pattern

The Plan My Garden planner spaces tomatillo exactly like a tomato, one plant per 2 x 2 block with a support, and my square foot gardening chart gives an unpruned tomato the same four squares. There is no 1 per square option: my tomato spacing page fits a single-stem tomato in one square, but neither the planner nor the extension guides below put a tomatillo closer than 2 feet.

The bed counts are grid maximums for a bed of only tomatillos, not a target. They only work with support: Utah State University Extension says tomatillos grow 3 to 4 feet tall and wide, which is bigger than a 2 x 2 block. Unstaked, count on fewer plants per bed.

Why you need at least two plants

Tomatillos are not self-fruitful, so always plant at least two, of the same or different varieties. Bees and other insects carry the pollen between the plants. Utah State University Extension says two of the same variety work, but University of Minnesota Extension calls two different varieties ideal for cross-pollination.

Empty husks are the symptom. USU puts them down to the plant not being self-fertile, plus extreme temperatures and dry conditions. Minnesota Extension gives the flower-abort range as above 90°F or below 55°F.

So plan for two blocks side by side, on the north or west side of the bed, the way my tomato support post places tall crops so they do not shade shorter ones. In a 4 x 4 bed a pair takes half the bed. In a 4 x 8 bed it takes a quarter. My salsa garden layout does exactly that, with two tomatillo blocks in a 4×8 bed beside the tomatoes, peppers, onions and cilantro. A 2×4 bed holds one pair and nothing else.

How many to grow: USU expects 2 to 3 pounds of fruit per plant and suggests two to three plants for fresh use, with more for freezing and canning. A pair is roughly 4 to 6 pounds by that estimate.

Staking tomatillos in a 2 x 2 block

These steps follow Utah State University Extension’s tomatillo guide, with notes from NC State and Minnesota Extension.

1. Put the support in at planting, the same order as on my tomato spacing page, so it is there before the plant sprawls.
2. Drive a 48 inch stake 18 inches into the soil next to the stem, tie the plant to it, and keep tying as it grows.
3. A tomato cage works too; tomatillos weigh less than tomato plants, so they are easier to hold up.
4. Keep stems off the soil. They root wherever they touch the ground, so stake or cage to stop the spread.
5. If a plant outgrows its block, pinch the growing tips, or prune it back once it crowds its neighbor.

The cages, rings and stakes I use for tomatoes are in How to Support Tomato Plants.

When to plant tomatillos

These are the windows the Plan My Garden planner uses, counted from your average last spring frost. Turn the weeks into dates with the seed starting calendar, or enter your zip code on Plan My Garden’s frost dates page.

Extension guides grow transplants faster, USU 6 to 8 weeks and Minnesota Extension 4 to 5 weeks. The planner’s window runs longer, 7 to 10 weeks depending on when you start and transplant.

Growing notes

Tomatillos do poorly in heavy, wet soil, so use a raised bed if yours drains slowly. They are fairly drought tolerant: water 1 to 2 inches a week, deeply and not often, and water the soil instead of the leaves to cut disease risk. Go easy on rich feeding; too much nitrogen gives bushy, leafy plants that are slow to bear.

Pick when the fruit fills the husk but is still green and firm; left longer, it turns soft and bland. Only the fruit is food. NC State Extension lists every other part of the plant as poisonous.

Tomatillos self-seed, so clear fallen fruit to avoid a bed full of volunteers next spring. Their sweet cousin, the ground cherry, gets the same 4 squares in my ground cherry guide.

Quick questions

How many tomatillo plants fit in a 4×8 raised bed?

Up to 8, one per 2 x 2 foot block, if the whole bed is tomatillos and every plant is staked or caged. A single pair takes 8 of the 32 squares.

Can you grow just one tomatillo plant?

You can, but expect empty husks. Utah State University Extension says tomatillos are not self-fruitful and to always plant at least two, of the same or different varieties.

How far apart should tomatillos be planted?

24 inches in a square foot garden, one plant per 2 x 2 foot block. Utah State University Extension sets transplants 2 feet apart in rows 3 feet apart.

Do tomatillos need a cage or stake?

At 1 per 4 squares, yes. Utah State University Extension says plants grow 3 to 4 feet tall and wide, and holds them up with a 48 inch stake driven 18 inches deep or a tomato cage.

Let the planner place them

If you would rather not fit tomatillo pairs by hand, Plan My Garden is free to start: enter your zip code, draw your beds, pick tomatillos and everything else you want to grow, and it places each plant at square-foot spacing and builds a planting schedule from your frost dates.

Related: Salsa Garden Layout · How Many Tomato Plants per Square Foot? · How Many Peppers per Square Foot? · How Many Eggplant Plants per Square Foot? · Square Foot Garden Calculator · 4×8 Raised Bed Garden Layout