Safe to Plant

Agretti · Kolomna, Moscow Oblast, Russia

When to plant agretti in Kolomna

Main outdoor window

3-24 May

The window this page is built around.

Timed from last spring frost

3 May

In Kolomna, on your chosen risk.

Ready to pick

1 May - 31 Jul

If you plant at the start of the window.

The average last frost. Half of all years are later than this.

Held back by cold soil. Frost is finished by about 5 Apr here, but agretti will not get going until the soil reaches 10°C (50°F), and in Kolomna that is around 3 May. The dates above use the later of the two, because sowing into cold soil rots seed rather than gaining you time.

Step by step in Kolomna

Each window is a range, not a single day. Earlier in the range buys you a longer season; later in it buys you a safer one.

Sow direct

3-24 May

Held back until the soil is warm enough for this crop. The frost date on its own would say 5 Apr, which is too cold for it to start.

Harvest

1 May - 31 Jul

Frost tolerance
Half-hardy
Damaged below
-3°C (26.6°F)
Days to maturity
50–70
Min soil temp
10°C (50°F)
Spacing
10 cm
Sowing depth
5 mm (0.2 in)
Sun
Full

Agretti through the year

Against the frost risk in Kolomna

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Frost risk Sow direct Harvest Today

Why these dates

Sow fresh seed four weeks before the last frost, thickly, because germination is poor even at its best. Cut the whole plant at about 20cm before it toughens.

Tolerates around -3C. The season ends in early summer when the plant turns woody rather than because of any cold.

Seed packets and extension guides express timing as weeks either side of the last spring frost, because that is the only reference point that travels. Agretti are timed for direct sowing 4 weeks before it, and this page simply resolves those offsets against the frost date computed for Kolomna.

With one correction, which is the note at the top of the page: the offset alone would put this crop in soil that is still too cold for it. Where the frost date and the soil temperature disagree, the dates here follow the soil, because a seed in cold ground either rots or waits, and a sowing made a fortnight later usually overtakes it.

The median frost-free season here is 157 days, against 50 to 70 days to maturity for this crop counted from sowing. That margin is what decides whether a late sowing is worth attempting.

See every crop timed for Kolomna →

Growing agretti in Kolomna

When should I plant agretti in Kolomna?

Aim for 3-24 May in an average year. If you would rather not gamble on the weather, wait until 2-23 May - by then frost has finished in nine years out of ten.

Can I plant agretti earlier in Kolomna?

Frost is finished by about 5 Apr, but the soil is still too cold. Agretti will not start until it reaches 10°C (50°F), and here that is around 3 May. Going in earlier usually means seed that rots or transplants that sit and sulk, and a later sowing catches them up.

When will agretti be ready to harvest in Kolomna?

Expect to start picking around 1 May - 31 Jul, based on 50 to 70 days to maturity from the planting date calculated for this location.

How much frost will agretti tolerate?

Tolerates around -3C. The season ends in early summer when the plant turns woody rather than because of any cold.