When to Plant Wasabi in Silvan, Diyarbakır Province, Turkey

Step by step in Silvan

Import into Apple Calendar, Google Calendar or Outlook. Dates use the selected risk level and are planning estimates, not frost alerts.

Each window is a planning range. Check the forecast, soil and cultivar before planting; a later date is not automatically safer in hot or wet conditions.

Plant divisions

30 Nov - 12 Mar

Any time the plant is dormant and the ground is neither frozen nor waterlogged: after leaf fall in autumn, or at the end of winter before growth restarts.

Harvest

1 Sep - 30 Nov

Frost tolerance

Hardy

Damaged below

-6°C (21.2°F)

Typical first crop

Year 2

Hardy to

Zone 7a–9a

Min soil temp

7°C (44.6°F)

Spacing

30 cm

Sowing depth

20 mm (0.8 in)

Sun

Shade

Wasabi through the year

Against the frost risk in Silvan

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Wasabi

Frost risk Plant Harvest Today

Seasonal context

Rainfall and the growing season in Silvan

March has the highest average precipitation (78 mm); August has the lowest (1 mm). Compare this pattern with the planting windows and your water supply.

Jan 75 mm

Feb 77 mm

Mar 78 mm

Apr 77 mm

May 47 mm

Jun 10 mm

Jul 2 mm

Aug 1 mm

Sep 8 mm

Oct 43 mm

Nov 55 mm

Dec 77 mm

During wetter months, check that beds and containers drain after heavy rain. During drier months, plan how you will keep seeds and new transplants watered. Monthly averages can hide long dry spells and intense storms; they do not show soil moisture, humidity or this week's weather.

Source: NASA POWER, corrected MERRA-2 precipitation, 2001–2020. Values are approximate monthly totals, including the water equivalent of snow, from the nearest 0.5° × 0.625° grid cell. This reference period differs from the temperature record. Rainfall provides context and does not change the calculated planting dates. Method and limitations.

Monthly growing conditions in Silvan

Compare the planting window with the local temperature pattern. These are historical monthly averages, not this year's forecast or measured soil temperatures. Average frost days do not tell you whether a particular night will freeze.

NASA POWER climate averages, 1995–2024
Month	Average low	Average high	Frost days
January	-2.1°C (28.3°F)	6.8°C (44.2°F)	21.5
February	-0.9°C (30.5°F)	9.1°C (48.4°F)	15.4
March	3°C (37.5°F)	13.8°C (56.9°F)	6.0
April	7.9°C (46.3°F)	19.8°C (67.7°F)	0.4
May	12.9°C (55.2°F)	26.4°C (79.5°F)	0.0
June	18.3°C (64.9°F)	34.6°C (94.3°F)	0.0
July	22.9°C (73.1°F)	39.6°C (103.2°F)	0.0
August	23.1°C (73.6°F)	39.1°C (102.4°F)	0.0
September	18.5°C (65.2°F)	33.4°C (92°F)	0.0
October	12.5°C (54.5°F)	25.4°C (77.7°F)	0.0
November	5.1°C (41.3°F)	16.3°C (61.4°F)	2.6
December	0.2°C (32.3°F)	9.6°C (49.2°F)	12.8

For wasabi, also check drainage, sunlight and cultivar requirements. See the rainfall context above; humidity, irrigation and local pest pressure are not calculated.

Local growing check

Before choosing wasabi for Silvan

March is the wettest month in the rainfall grid, averaging about 78 mm. Check how your own bed drains and plan watering around actual soil moisture; monthly rain totals are not an irrigation schedule.

The temperature and rainfall tables on this page show the underlying climate estimates. How these suitability checks work · Record what happens in your garden.

Before you plant wasabi

Use the calendar to plan ahead, then check the conditions in your own garden.

Measure the soil at sowing depth. Aim for at least 7°C (44.6°F); the calendar estimates soil warmth from air temperatures and cannot measure your bed.
Frost tolerance does not make saturated or frozen soil suitable for planting. Wait until the bed can be worked without smearing or compacting it.
Check mature size, drainage and cultivar suitability before choosing a permanent position. A suitable planting window does not guarantee long-term survival or fruiting.

Provide cool shade and patient care before expecting a rhizome

Use an organic, moisture-retentive but drained root zone, sheltered from heat and direct strong sun. Keep it moist without stagnant water around the roots. A small monitored trial is more useful than planting a large area in an untested position.

Inspect growth through the warmest months and allow plants to establish before harvesting. Keep nursery identity and propagation details, since true wasabi differs from ordinary horseradish. Judge the trial by survival and rhizome development, not leaf size alone.

What to record this season

Could the site remain cool and moist through summer without root decline? Add the cultivar, sowing date and conditions to your growing record so you can compare next season.

Further reading: NC State Extension: Eutrema japonicum . General crop guidance; local dates on this site are calculated separately. Source checked 19 September 2026 by Safe to Plant; this is not an expert review.

The reference describes plant identity and cultivation. Its regional calendar months and hardiness observations do not validate the calculated dates for another location.

How the dates are calculated and their limits · Keep a growing record · Report a local discrepancy

Why these dates

Use an organic, moisture-retentive but drained root zone, sheltered from heat and direct strong sun. Keep it moist without stagnant water around the roots. A small monitored trial is more useful than planting a large area in an untested position.

Check the named variety and local forecast before exposing young growth. The catalog cold-damage figure is a reference, not a guarantee: plant age, acclimatisation, wind and the duration of a freeze affect damage.

Wasabi are planted once and then left in place, so there is no sowing offset to resolve. What matters in Silvan is the shape of the year: this crop is dormant through the winter and is planted while it sleeps, any time between leaf fall in autumn and the restart of growth in spring, so long as the ground is neither frozen nor waterlogged. That is why the window below spans the cold months rather than sitting in the middle of the growing season.

Silvan is zone 8a, within the crop's general range. This is an initial cold-hardiness check; cultivar, exposure, drainage and unusual winters can still change the outcome.

The general establishment guide is around year 2, under suitable conditions. This is not a prediction for this location; cultivar, winter conditions and care determine whether it crops reliably.

See every crop timed for Silvan →

Nearby

Wasabi in places close by

Batman 30 km Bismil 45 km Diyarbakır 74 km Muş 78 km Siirt 85 km Midyat 85 km

Also in Silvan

Other vegetables to time

Tomatoes tender Lettuce half hardy Potatoes half hardy Courgettes tender Sweet peppers tender Carrots hardy Cucumbers tender Green beans tender Peas hardy Garlic very hardy Chilli peppers tender Sweetcorn tender

Growing wasabi in Silvan

Can I grow wasabi in Silvan?

The calendar estimates a planting window, not a guarantee of success. March is the wettest month in the rainfall grid, averaging about 78 mm. Check how your own bed drains and plan watering around actual soil moisture; monthly rain totals are not an irrigation schedule.

When should I plant wasabi in Silvan?

Aim for 30 Nov - 12 Mar in an average year. If you would rather not gamble on the weather, wait until 8 Nov - 27 Mar - by then frost has finished in nine years out of ten.

When might wasabi be ready to harvest in Silvan?

The estimated period is 1 Sep - 30 Nov, based on 540 to 730 days from the modeled planting date. Cultivar, planting material and growing conditions can change this interval; check the plant as well as the calendar.

How much frost will wasabi tolerate?