Persian buttercup · Rustavi, Kvemo Kartli, Georgia
When to plant persian buttercups in Rustavi
Main outdoor window
4-18 Oct
A climate estimate. Check your soil, forecast and cultivar.
Timed from last spring frost
3 April
In Rustavi, on your chosen risk.
First flowers
1 Apr - 30 Jun
If you plant at the start of the window.
The average last frost. Half of all years are later than this.
Step by step in Rustavi
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 corms
4-18 Oct
Four to six weeks before your first frost, so roots form before the ground cools.
In flower
1 Apr - 30 Jun
Persian buttercups through the year
Against the frost risk in Rustavi
Seasonal context
Rainfall and the growing season in Rustavi
May has the highest average precipitation (58 mm); February has the lowest (17 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.
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 Rustavi
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 | -2.6°C (27.4°F)27.4°F (-2.6°C) | 6.8°C (44.3°F)44.3°F (6.8°C) | 26.6 |
| February | -1.9°C (28.7°F)28.7°F (-1.9°C) | 9.2°C (48.6°F)48.6°F (9.2°C) | 20.8 |
| March | 1°C (33.8°F)33.8°F (1°C) | 13.6°C (56.4°F)56.4°F (13.6°C) | 11.8 |
| April | 6°C (42.7°F)42.7°F (6°C) | 19.6°C (67.3°F)67.3°F (19.6°C) | 1.4 |
| May | 11°C (51.7°F)51.7°F (11°C) | 24.4°C (75.8°F)75.8°F (24.4°C) | 0.0 |
| June | 15.9°C (60.5°F)60.5°F (15.9°C) | 29.5°C (85.2°F)85.2°F (29.5°C) | 0.0 |
| July | 19°C (66.1°F)66.1°F (19°C) | 32.9°C (91.2°F)91.2°F (32.9°C) | 0.0 |
| August | 19°C (66.2°F)66.2°F (19°C) | 33°C (91.3°F)91.3°F (33°C) | 0.0 |
| September | 14.4°C (57.8°F)57.8°F (14.4°C) | 27.2°C (80.9°F)80.9°F (27.2°C) | 0.0 |
| October | 8.9°C (48°F)48°F (8.9°C) | 20.4°C (68.7°F)68.7°F (20.4°C) | 0.2 |
| November | 3.1°C (37.5°F)37.5°F (3.1°C) | 13.7°C (56.6°F)56.6°F (13.7°C) | 5.7 |
| December | -1.1°C (30.1°F)30.1°F (-1.1°C) | 8.4°C (47.2°F)47.2°F (8.4°C) | 20.0 |
For persian buttercups, 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 persian buttercups for Rustavi
- May is the wettest month in the rainfall grid, averaging about 58 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 persian buttercups
Use the calendar to plan ahead, then check the conditions in your own garden.
- Check the local overnight forecast before planting out. Delay planting or keep protection ready if frost is forecast, even after the historical last-frost date.
- 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.
Match ranunculus to cool growth and a dry dormant phase
Plant sound material with the claws downward, following supplier depth and preparation guidance. Provide sun and excellent drainage; heavy wet soil can cause rot before a useful flowering plant develops.
Remove spent flowers and let foliage complete its cycle. As plants become dormant, adjust watering rather than keeping inactive roots constantly wet. Where storage is necessary, lift and retain only sound material under suitable cool, dry conditions.
What to record this season
Did plants flower before heat triggered decline, and did stored roots remain sound? Add the cultivar, sowing date and conditions to your growing record so you can compare next season.
Further reading: NC State Extension: Ranunculus asiaticus . 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
Plant sound material with the claws downward, following supplier depth and preparation guidance. Provide sun and excellent drainage; heavy wet soil can cause rot before a useful flowering plant develops.
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.
Persian buttercups are anchored to the first autumn frost rather than the last spring one, so the planting window on this page counts backwards from the end of the season in Rustavi instead of forwards from its start.
Rustavi is zone 8b, 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 median frost-free season here is 226 days, against 90 to 120 days to first flower for this crop counted from sowing. That margin is what decides whether a late sowing is worth attempting.
Also in Rustavi
Other flowers to time
Growing persian buttercups in Rustavi
Can I grow persian buttercups in Rustavi?
The calendar estimates a planting window, not a guarantee of success. May is the wettest month in the rainfall grid, averaging about 58 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 persian buttercups in Rustavi?
Aim for 4-18 Oct in an average year. If you would rather not gamble on the weather, wait until 22 Sep - 6 Oct - by then frost has finished in nine years out of ten.
When might persian buttercups flower in Rustavi?
The estimated period is 1 Apr - 30 Jun, based on 90 to 120 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 persian buttercups 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.