When to Plant Annual scabious in León de los Aldama, Guanajuato, Mexico

Step by step in León de los Aldama

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.

Start indoors

22 Nov - 20 Dec

Eight weeks before your last frost, under cover or on a windowsill.

Sow direct

3-31 Jan

Two weeks before your last frost.

Plant out

10 Jan - 7 Feb

One week before your last frost.

In flower

3 Apr - 3 May

Frost tolerance

Hardy

Damaged below

-8°C (17.6°F)

Days to flowering

90–120

Hardy to

Zone 3a–10a

Min soil temp

10°C (50°F)

Spacing

30 cm

Sowing depth

5 mm (0.2 in)

Sun

Full

Annual scabious through the year

Against the frost risk in León de los Aldama

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Annual scabious

Frost risk Start indoors Sow direct Plant out Harvest Today

Seasonal context

Rainfall and the growing season in León de los Aldama

July has the highest average precipitation (175 mm); April has the lowest (4 mm). Compare this pattern with the planting windows and your water supply.

Jan 11 mm

Feb 18 mm

Mar 11 mm

Apr 4 mm

May 32 mm

Jun 115 mm

Jul 175 mm

Aug 138 mm

Sep 122 mm

Oct 40 mm

Nov 13 mm

Dec 6 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 León de los Aldama

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	6.1°C (43°F)	22.1°C (71.9°F)	0.4
February	7.3°C (45.1°F)	24.6°C (76.3°F)	0.2
March	9°C (48.1°F)	27.3°C (81.2°F)	0.0
April	11.6°C (53°F)	30°C (85.9°F)	0.0
May	14.2°C (57.6°F)	31.2°C (88.2°F)	0.0
June	15°C (58.9°F)	29.4°C (85°F)	0.0
July	14°C (57.2°F)	27.2°C (81°F)	0.0
August	13.6°C (56.4°F)	27°C (80.6°F)	0.0
September	13.1°C (55.6°F)	26.4°C (79.5°F)	0.0
October	11.2°C (52.1°F)	25.7°C (78.3°F)	0.0
November	8.7°C (47.6°F)	24°C (75.1°F)	0.2
December	6.9°C (44.5°F)	22.2°C (72°F)	0.4

For annual scabious, 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 annual scabious for León de los Aldama

July is the wettest month in the rainfall grid, averaging about 175 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 annual scabious

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

Measure the soil at sowing depth. Aim for at least 10°C (50°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.
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.

Cut annual scabious regularly while conditions remain suitable

Use sun and fertile, drained soil. Tall strains may need support before stems lean into neighbouring plants. Keep moisture available during establishment, while recognising that hot, humid weather can limit performance even in a well-watered bed.

Remove or cut fading blooms to encourage further flowers, or retain selected heads if seed is wanted. Compare stem length and flower quality across sowings. Adding water to already wet soil will not solve a display that is declining because the weather is unsuitable.

What to record this season

Which sowing gave the strongest cut stems, and when did heat or humidity reduce flower quality? Add the cultivar, sowing date and conditions to your growing record so you can compare next season.

Further reading: NC State Extension: Scabiosa atropurpurea . 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 sun and fertile, drained soil. Tall strains may need support before stems lean into neighbouring plants. Keep moisture available during establishment, while recognising that hot, humid weather can limit performance even in a well-watered bed.

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.

This calendar uses frost-relative offsets as a starting point. Annual scabious are timed from 8 weeks before that frost for an indoor start, with planting out 1 weeks before it, and this page simply resolves those offsets against the frost date computed for León de los Aldama.

León de los Aldama is zone 10a, 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 329 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.

See every crop timed for León de los Aldama →

Nearby

Annual scabious in places close by

San Francisco del Rincón 22 km Silao de la Victoria 33 km Lagos de Moreno 37 km Guanajuato 45 km Irapuato 61 km Dolores Hidalgo 78 km

Also in León de los Aldama

Other flowers to time

Tulips very hardy Daffodils very hardy Dahlias tender Sunflowers tender Crocuses very hardy Peonies very hardy Calendulas hardy Hyacinths very hardy Sweet peas hardy Pansies very hardy Snowdrops very hardy Zinnias tender

Growing annual scabious in León de los Aldama

Can I grow annual scabious in León de los Aldama?

The calendar estimates a planting window, not a guarantee of success. July is the wettest month in the rainfall grid, averaging about 175 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 annual scabious in León de los Aldama?

Aim for 3-31 Jan in an average year. If you would rather not gamble on the weather, wait until 4 Feb - 4 Mar - by then frost has finished in nine years out of ten.

When might annual scabious flower in León de los Aldama?

The estimated period is 3 Apr - 3 May, 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 annual scabious tolerate?