Stock · Siu Lek Yuen, Sha Tin, Hong Kong
When to plant stocks in Siu Lek Yuen
Main outdoor window
1 Nov - 16 Dec
A climate estimate. Check your soil, forecast and cultivar.
Timed from temperature
November to April
No frost on record in Siu Lek Yuen, so the months this crop fits in our temperature model set the timing. This does not confirm local suitability.
First flowers
20 Jan - 19 Feb
If you plant at the start of the window.
Temperature-based estimate. Siu Lek Yuen has no dependable frost season.
These dates do not account for rain, humidity or waterlogging. Check the local growing season,
especially in monsoon climates, before treating this window as a planting recommendation.
Rainfall check: the wettest month is June (about 282 mm), and the driest is
December (about 25 mm).
Compare all months and check the limitations before choosing the season.
Step by step in Siu Lek Yuen
Download these planting dates (.ics)
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 out
1 Nov - 16 Dec
The opening weeks of the stretch when the average temperature suits this crop, which here runs from November to April. There is no frost to work around, so heat is what sets the timing.
In flower
20 Jan - 19 Feb
Stocks through the year
Against the monthly temperature record in Siu Lek Yuen
Seasonal context
Rainfall and the growing season in Siu Lek Yuen
June has the highest average precipitation (282 mm); December has the lowest (25 mm). Compare this pattern with the planting windows and your water supply.
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.
Frost-free does not mean every month is suitable. In tropical and monsoon climates, rainfall, heat, drainage and the cultivar can set the practical growing season. Match the temperature window to these conditions and check advice from a local grower before buying planting material.
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 Siu Lek Yuen
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.
| Month | Average low | Average high | Frost days |
|---|---|---|---|
| January | 12.8°C (55°F)55°F (12.8°C) | 20°C (68°F)68°F (20°C) | 0.0 |
| February | 14.5°C (58.1°F)58.1°F (14.5°C) | 21.2°C (70.1°F)70.1°F (21.2°C) | 0.0 |
| March | 17.5°C (63.5°F)63.5°F (17.5°C) | 23.7°C (74.6°F)74.6°F (23.7°C) | 0.0 |
| April | 20.9°C (69.6°F)69.6°F (20.9°C) | 26.3°C (79.4°F)79.4°F (26.3°C) | 0.0 |
| May | 24.1°C (75.3°F)75.3°F (24.1°C) | 28.6°C (83.4°F)83.4°F (28.6°C) | 0.0 |
| June | 26.4°C (79.6°F)79.6°F (26.4°C) | 29.6°C (85.4°F)85.4°F (29.6°C) | 0.0 |
| July | 27°C (80.6°F)80.6°F (27°C) | 30.3°C (86.5°F)86.5°F (30.3°C) | 0.0 |
| August | 26.8°C (80.2°F)80.2°F (26.8°C) | 30.2°C (86.3°F)86.3°F (30.2°C) | 0.0 |
| September | 25.6°C (78°F)78°F (25.6°C) | 29.8°C (85.7°F)85.7°F (29.8°C) | 0.0 |
| October | 22.4°C (72.4°F)72.4°F (22.4°C) | 28.1°C (82.5°F)82.5°F (28.1°C) | 0.0 |
| November | 18.5°C (65.3°F)65.3°F (18.5°C) | 25.2°C (77.4°F)77.4°F (25.2°C) | 0.0 |
| December | 13.6°C (56.5°F)56.5°F (13.6°C) | 21.1°C (70°F)70°F (21.1°C) | 0.0 |
For stocks, 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 stocks for Siu Lek Yuen
- June is the wettest month in the rainfall grid, averaging about 282 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 stocks
Use the calendar to plan ahead, then check the conditions in your own garden.
- In a frost-free climate, check seasonal rainfall, humidity and heat before planting. A month with suitable average temperatures can still be too wet, dry or hot for this crop.
- Harden off plants raised indoors: gradually expose them to outdoor light, wind and temperature before their final move into the bed.
- Use the maturity range on your seed packet when choosing a variety. Cold, short days and transplant stress can make harvest later than the calendar estimate.
Choose stock for a cool flowering season and the right stem type
Use fertile, drained soil and a bright position during a suitable cool growing period. Keep moisture available without waterlogging roots. Sustained heat, particularly warm nights, can shorten the useful display, so a frost-free date alone does not prove suitability.
Compare small sowing batches if a longer supply of flowers is wanted. Record the strain, sowing date and first usable stem rather than mixing results from branching and single-stem types. If hot conditions end the display, investigate a cooler planting season before adding more fertiliser.
What to record this season
Which strain and sowing batch gave useful flowers before sustained heat arrived? Add the cultivar, sowing date and conditions to your growing record so you can compare next season.
Further reading: NC State Extension: Matthiola incana . 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
Frost-relative timing needs a dependable seasonal frost date. Siu Lek Yuen has no such date in this record, so this page compares monthly temperatures with the crop's model range instead. Local wet and dry seasons, day length and cultivar requirements still need a separate check.
The model uses a growing-temperature band for stocks between 5°C (41°F)41°F (5°C) and 25°C (77°F)77°F (25°C) — and in Siu Lek Yuen that is November to April, 6 months of the year, taken from this location's own monthly averages. The planting window begins near the start of this period. The catalog estimate is 80 to 110 days from planting to flowering under suitable conditions.
Siu Lek Yuen sits in zone 11a, which is above the catalog range. Confirm the exact cultivar locally; a zone number alone cannot measure summer heat or winter chill. The calculated dates do not confirm that this crop is suitable here. Check cultivar requirements and local growing experience before planting.
Nearby
Stocks in places close by
Also in Siu Lek Yuen
Other flowers to time
Growing stocks in Siu Lek Yuen
Can I grow stocks in Siu Lek Yuen?
The calendar estimates a planting window, not a guarantee of success. June is the wettest month in the rainfall grid, averaging about 282 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 stocks in Siu Lek Yuen?
The temperature-based window is 1 Nov - 16 Dec. Siu Lek Yuen has no dependable frost season: November to April have monthly averages inside the model range for stocks. Check seasonal rainfall, heat and cultivar requirements before planting.
When might stocks flower in Siu Lek Yuen?
The estimated period is 20 Jan - 19 Feb, based on 80 to 110 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 stocks tolerate?
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.