Agapanthus · Tai Po, Tai Po, Hong Kong
When to plant agapanthus in Tai Po
Main outdoor window
1 Sep - 16 Oct
A climate estimate. Check your soil, forecast and cultivar.
Timed from temperature
September to May
No frost on record in Tai Po, so the months this crop fits in our temperature model set the timing. This does not confirm local suitability.
First autumn frost
no autumn frost
The far end of the outdoor season.
Temperature-based estimate. Tai Po 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 Tai Po
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 the crowns
1 Sep - 16 Oct
The opening weeks of the stretch when the average temperature suits this crop, which here runs from September to May. There is no frost to work around, so heat is what sets the timing.
Agapanthus through the year
Against the monthly temperature record in Tai Po
Seasonal context
Rainfall and the growing season in Tai Po
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 Tai Po
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 agapanthus, also check drainage, sunlight and cultivar requirements. See the rainfall context above; humidity, irrigation and local pest pressure are not calculated.
The catalog flowering or harvest months are not verified for this frost-free climate. Ask a local grower about the cultivar’s seasonal cycle.
Local growing check
Before choosing agapanthus for Tai Po
- 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 agapanthus
Use the calendar to plan ahead, then check the conditions in your own garden.
- Measure the soil at sowing depth. Aim for at least 12°C (53.6°F); the calendar estimates soil warmth from air temperatures and cannot measure your bed.
- 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.
- Check mature size, drainage and cultivar suitability before choosing a permanent position. A suitable planting window does not guarantee long-term survival or fruiting.
Check evergreen or deciduous habit before planning winter care
Choose a labelled cultivar, suitable light and a drained root zone. Containers need room for healthy roots and regular moisture during growth; severe root congestion is not a dependable cure for poor flowering.
Keep evergreen foliage in suitable light if overwintering under cover. Dormant deciduous plants need different treatment. Division may temporarily reduce flowering, so record the timing and allow recovery rather than repeatedly repotting a newly divided clump.
What to record this season
Did the chosen winter treatment match the plant's evergreen or deciduous growth habit? Add the cultivar, sowing date and conditions to your growing record so you can compare next season.
Further reading: Agapanthus (African Lily, Lily of the Nile) | North Carolina Extension Gardener Plant Toolbox . 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. This reference covers the broader plant group; confirm the named form and its specific requirements with the supplier.
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. Tai Po 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 agapanthus between 12°C (53.6°F)53.6°F (12°C) and 28°C (82.4°F)82.4°F (28°C) — and in Tai Po that is September to May, 9 months of the year, taken from this location's own monthly averages. The planting window begins near the start of this period.
Tai Po is zone 11a, 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 flowers reliably.
Also in Tai Po
Other flowers to time
Growing agapanthus in Tai Po
Can I grow agapanthus in Tai Po?
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 agapanthus in Tai Po?
The temperature-based window is 1 Sep - 16 Oct. Tai Po has no dependable frost season: September to May have monthly averages inside the model range for agapanthus. Check seasonal rainfall, heat and cultivar requirements before planting.
How much frost will agapanthus 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.