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Shishito Pepper Growing Calendar: Sowing Through to the Last Pick

The shishito year stage by stage, judged by soil and night temperature rather than dates, with the job at each stage that is easiest to miss.

Five moments that decide the season

A shishito season turns on five decisions, and each is judged from a thermometer or from the plant rather than from a date on a calendar. That is why the same crop behaves so differently in two gardens a few hundred miles apart, and why a written record from your own garden beats any published schedule.

Turning pointRoughly whenHow you judge it
Sowing8 to 10 weeks before last frostCan you hold 80F (27C) at the compost surface
Planting out2 to 3 weeks after last frostIs the soil above 60F (16C) four inches (10 cm) down
Removing the first pod2 to 4 weeks after plantingHas the flower in the fork set a pod
Starting the picking rhythmFirst pods reach 2 in (5 cm)Are you back on the plant inside 3 days
ClearingBefore the first frostHave nights fallen below 50F (10C)

Everything shifts a week or two with the season. Peppers are slower and far more heat dependent than most vegetables, so err towards planting later into warmer ground rather than earlier into cold.

Raising or buying the plants

Peppers are sown early and grow slowly, and the standard mistake is treating them like tomatoes: sown at the same time, planted out at the same time. A shishito needs a longer run in warmth before it is fit to go out, and it needs warmer soil when it arrives.

StageJobsEasy to overlook
10 weeks before last frostSow into real bottom heatGermination wants 80F (27C); a cool windowsill gives nothing
8 weeks beforeTransplant into individual potsHandle by a seed leaf, never by the stem
6 weeks beforeMaximum light, cooler by dayWeak light now gives leggy plants you cannot correct later
4 weeks beforeFirst weak feed at quarter strengthOnly once the first true leaves are fully open
2 weeks before plantingHarden off in stagesA week outside in shelter, longer each day

For two or three plants, buying is a sensible choice and skips ten weeks of heated propagation. Pick a short stocky plant with close leaf joints and no pods on it.

Planting out and the first month

This month decides how big the plant gets, and hardly any of it involves feeding. The work is warmth, water, support and taking the first pod off. A plant that comes through these four weeks stocky and well rooted crops for months; one pushed into cold ground stays small all season and never catches up.

Wait for three consecutive mornings with the soil above 60F (16C) at four inches (10 cm) and night air holding above 55F (13C). Space the plants 18 to 24 inches (45 to 60 cm) apart, get three canes in on planting day, and do not mulch until the ground has warmed through.

StageJobsEasy to overlook
Planting daySpace 18 to 24 in (45 to 60 cm), three canes, water in slowlyCanes go in now, not later through the roots
First weekWater every 2 or 3 days, no feed at allA cutworm collar saves a plant you raised for 10 weeks
Second weekCheck ties, mulch once the soil is warmMulch laid over cold soil keeps it cold
Third weekRub off shoots below the first forkThey keep reappearing; go over it weekly
Fourth weekTake the first flower or small pod offThe highest value job of the entire month
First pods setFirst feed, half strengthFeeding earlier gives leaves instead of pods

Main crop: keeping the rhythm

Once pods start reaching two inches (5 cm) the season stops being a list of jobs and becomes a rhythm. Pick every two or three days, feed every ten to fourteen days, water by the weather rather than by habit, and check the ties as branches load up. None of it is difficult and all of it depends on not missing a pick.

Fix the interval to days you can genuinely keep. A plant picked reliably twice a week for three months yields two or three times what the same plant gives when it is picked whenever somebody remembers.

StageJobsEasy to overlook
First pods pickableStart a fixed twice weekly pickSearch inside the bush, not just around the outside
Full productionFeed every 10 to 14 days, water daily in heatPods getting shorter means the plant is hungry
Branches loading upAdd a twine loop around the canesBrittle forks split without warning under a load
A week you missedStrip every mature pod, water, feedFlowers come back in about 10 days
Aphids appearWash off, repeat every few daysThe colony starts in the middle of the plant
A run of hot dry daysWater deeply, mulch, shadeMore pods will come out hot that week

Going away for a fortnight? Pick the plant completely bare before you leave, small pods included. That costs far less than coming back to a plant that has shut down around a dozen tough ones.

The summer pause and the autumn flush

In most warm climates there is a stretch in high summer where flowers drop and almost nothing sets, because pollen fails above about 90F (32C) by day or 75F (24C) at night. Shishitos usually keep trickling out a few pods through it and then come back hard once the weather turns.

The job during the pause is holding condition rather than forcing a set. Water, feed at half strength, keep aphids and mites down, and keep picking whatever it gives you. Within a fortnight of the break you should see a heavy flush of flowers, and that autumn crop is frequently the best of the year, with noticeably fewer hot pods because the plant is no longer stressed.

StageJobsEasy to overlook
Heat arrivingShade cloth up, water morning and eveningPut shade up before the drop starts, not after
The pauseWater, half strength feed, watch for spider mitesOverfeeding will not force a set
Weather breaksFull feed, expect a flush of flower budsClear any pods left on so nothing suppresses it
Autumn flushBack to the twice weekly pickCooler nights mean pods fill a few days slower
Early autumnKeep feeding while nights stay above 55F (13C)Growth still looks fast but the season is short now

Clearing up, and recovering when the season slips

Once nights drop below about 55F (13C), stop feeding and keep picking. Row cover thrown over the plants on cold nights buys another fortnight. Below 50F (10C) the plant stops filling pods, so take everything left at whatever size it has reached, let a handful color indoors, clear the plants before frost, and do not compost anything that wilted or spotted.

Most seasons slip somewhere. What matters is which job absorbs the delay, because some slips cost a fortnight and some cost the crop.

What slippedWhat followsHow to recover
Planted into cold soilThe plant stunts and stays small all seasonCover it, do not feed, wait for real warmth
Let the first pod grow full sizeThe plant stops extending for weeksTake it off now; growth resumes within a fortnight
Missed two weeks of pickingFlowering stops, pods toughen and colorStrip everything, water, feed; flowers in 10 days
Never staked itA fork splits and takes a third of the plantCut the tear back cleanly and tie in what is left
Let it dry out repeatedly in heatCreased tough pods and many more hot onesMulch and fix the interval; the next set comes clean
Missed the shade clothFlowers drop for several weeksNothing to do now; keep it fed for the autumn flush

The slip you cannot recover from is a late start in a short season. If you are planting more than three weeks after your usual point, top the plant, grow it in a container against a warm wall, and accept a smaller crop.

Read next

Keep a growing history for Shishito Pepper

Type the plant name, add the planting date, and take photos as it grows. Next season you will have your own dates for sowing, flowering, and harvest instead of a generic calendar.

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