Las cuatro fechas que importan
| Fecha | Cuándo | Qué significa |
|---|---|---|
| Última helada de primavera (50 %) | Feb 13 | La mitad de los años hiela después de esta fecha. Es una media, no una garantía. |
| Última helada de primavera (10 %) | Mar 12 | Solo un año de cada diez hiela después de esta fecha. Úsala para lo que no puedas permitirte replantar. |
| Primera helada de otoño (50 %) | Dec 9 | La mitad de los años hiela antes de esta fecha. Los cultivos de otoño se cuentan hacia atrás desde aquí. |
| Primera helada de otoño (10 %) | Nov 17 | Un año de helada temprana. Si un cultivo tiene que terminar, apunta a cosechar antes de esta fecha. |
Siembra de primavera y verano en Houston
Las fechas se calculan con la última helada de este lugar, no con una tabla genérica por zona. Los «mejores días lunares» son los días de cada ventana que caen en la fase tradicional del cultivo, la misma regla que usa la app.
| Cultivo | Sembrar dentro | Plantar fuera | Mejores días lunares | Días hasta la cosecha |
|---|---|---|---|---|
| Asparagus (crowns) transplant |
— | Jan 2 – Feb 6 | Jan 25 First Quarter |
perennial — first real harvest 2–3 years |
| Chives either |
Dec 19 | Jan 2 – Feb 6 | Jan 19–24 Waxing Crescent |
75–90 |
| Onion (from sets/transplants) cloves/sets |
— | Jan 2 – Feb 6 | Jan 4–9 Waning Gibbous |
90–120 |
| Peas (English/snap) direct sow |
— | Jan 2 – Feb 6 | Jan 25 First Quarter |
55–75 |
| Spinach direct sow |
— | Jan 2 – Feb 6 | Jan 19–24 Waxing Crescent |
35–50 |
| Cabbage transplant |
Dec 12 | Jan 9 – Feb 6 | Jan 19–24 Waxing Crescent |
65–90 |
| Collards either |
Jan 2 | Jan 9 – Feb 27 | Jan 19–24 Waxing Crescent |
55–85 |
| Kale either |
Jan 2 | Jan 9 – Feb 13 | Jan 19–24 Waxing Crescent |
50–65 |
| Lettuce (leaf) either |
Jan 9 | Jan 9 – Mar 6 | Jan 19–24 Waxing Crescent |
40–55 |
| Potato cloves/sets |
— | Jan 9 – Feb 13 | Feb 1 Full Moon |
70–120 |
| Radish direct sow |
— | Jan 9 – Mar 6 | Jan 9, Feb 2–6 Waning Gibbous |
22–35 |
| Turnip direct sow |
— | Jan 9 – Feb 20 | Jan 9, Feb 2–6 Waning Gibbous |
40–60 |
| Broccoli transplant |
Dec 12 | Jan 14 – Feb 13 | Jan 19–24 Waxing Crescent |
55–80 |
| Brussels Sprouts transplant |
Dec 12 | Jan 14 – Feb 13 | Jan 19–24 Waxing Crescent |
90–110 |
| Leek transplant |
Dec 5 | Jan 14 – Feb 13 | Feb 2–7 Waning Gibbous |
100–120 |
| Lettuce (head) transplant |
Dec 26 | Jan 14 – Feb 13 | Jan 19–24 Waxing Crescent |
60–85 |
| Parsley either |
Dec 12 | Jan 14 – Feb 20 | Jan 19–24 Waxing Crescent |
70–90 |
| Parsnip direct sow |
— | Jan 14 – Feb 20 | Feb 1 Full Moon |
100–150 |
| Shallot cloves/sets Mejor sembrarlo en otoño: mira abajo |
— | Jan 14 – Feb 13 | Feb 2–7 Waning Gibbous |
90–120 |
| Beet direct sow |
— | Jan 16 – Mar 6 | Feb 1, Mar 3 Full Moon |
50–65 |
| Kohlrabi either |
Jan 2 | Jan 16 – Feb 20 | Jan 19–24 Waxing Crescent |
45–60 |
| Carrot direct sow |
— | Jan 23 – Mar 6 | Feb 1, Mar 3 Full Moon |
65–85 |
| Cauliflower transplant |
Dec 12 | Jan 23 – Feb 13 | Jan 23–24 Waxing Crescent |
55–80 |
| Cilantro direct sow |
— | Jan 23 – Mar 6 | Jan 23–24, Feb 18–21 Waxing Crescent |
45–70 |
| Swiss Chard direct sow |
— | Jan 23 – Mar 15 | Jan 23–24, Feb 18–21 Waxing Crescent |
50–60 |
| Dill direct sow |
— | Jan 30 – Mar 15 | Feb 18–23 Waxing Crescent |
40–60 |
| Cucumber either |
Jan 23 | Feb 13 – Mar 15 | Feb 24 First Quarter |
50–70 |
| Green Beans (bush) direct sow |
— | Feb 13 – Mar 30 | Feb 24, Mar 25 First Quarter |
50–65 |
| Oregano transplant |
Dec 19 | Feb 13 – Mar 6 | Feb 24 First Quarter |
cut as needed |
| Sage transplant |
Dec 19 | Feb 13 – Mar 6 | Feb 24 First Quarter |
cut as needed |
| Sweet Corn direct sow |
— | Feb 13 – Mar 30 | Feb 24, Mar 25 First Quarter |
60–100 |
| Thyme transplant |
Dec 19 | Feb 13 – Mar 6 | Feb 24 First Quarter |
cut as needed |
| Zucchini / Summer Squash either |
Jan 23 | Feb 13 – Mar 15 | Feb 24 First Quarter |
45–60 |
| Basil either |
Jan 2 | Feb 20 – Mar 15 | Feb 20–23 Waxing Crescent |
30–60 |
| Dry Beans direct sow |
— | Feb 20 – Mar 20 | Feb 24 First Quarter |
85–100 |
| Pole Beans direct sow |
— | Feb 20 – Mar 25 | Feb 24, Mar 25 First Quarter |
60–75 |
| Pumpkin direct sow |
Jan 23 | Feb 20 – Mar 20 | Feb 24 First Quarter |
90–120 |
| Rosemary transplant |
Feb 13 | Feb 20 – Mar 15 | Feb 24 First Quarter |
cut as needed |
| Tomatillo transplant |
Jan 2 | Feb 20 – Mar 15 | Feb 24 First Quarter |
60–75 |
| Tomato transplant |
Jan 2 | Feb 20 – Mar 15 | Feb 24 First Quarter |
60–85 |
| Winter Squash direct sow |
Jan 23 | Feb 20 – Mar 20 | Feb 24 First Quarter |
85–110 |
| Cantaloupe / Muskmelon either |
Jan 23 | Feb 27 – Mar 20 | — First Quarter |
75–90 |
| Eggplant transplant |
Dec 19 | Feb 27 – Mar 20 | — First Quarter |
60–90 |
| Okra direct sow |
Jan 16 | Feb 27 – Mar 25 | Mar 25 First Quarter |
50–70 |
| Pepper transplant |
Dec 19 | Feb 27 – Mar 20 | — First Quarter |
60–90 |
| Sweet Potato slips |
— | Feb 27 – Mar 25 | Mar 4–9 Waning Gibbous |
90–150 |
| Watermelon either |
Jan 23 | Feb 27 – Mar 20 | — First Quarter |
70–90 |
| Strawberry (crowns) transplant |
— | Dec 15 – Jan 23 | Jan 3 Full Moon |
perennial — first real harvest next season |
| Garlic cloves/sets Mejor sembrarlo en otoño: mira abajo |
— | Dec 28 – Jan 28 | Jan 4–9 Waning Gibbous |
240–300 |
Siembra de otoño en Houston
Las fechas de otoño se cuentan hacia atrás desde la primera helada y añaden tiempo por el «factor de otoño»: los días se acortan y refrescan, así que el cultivo crece más despacio de lo que promete el sobre. Sembrar tarde es la forma más común de que falle un huerto de otoño.
| Cultivo | Sembrar o trasplantar | Mejores días lunares | Días hasta la cosecha | Resistencia al frío |
|---|---|---|---|---|
| Tomato | Jul 24 – Aug 29 | Aug 19 | 60–85 | very tender |
| Brussels Sprouts | Jul 27 – Aug 13 | Aug 13 | 90–110 | hardy |
| Potato | Aug 1 – Sep 2 | Aug 27 | 70–120 | semi-hardy |
| Sweet Corn | Aug 6 – Aug 29 | Aug 19 | 60–100 | tender |
| Pole Beans | Aug 16 – Aug 29 | Aug 19 | 60–75 | tender |
| Parsley | Aug 19 – Sep 2 | — | 70–90 | semi-hardy |
| Okra | Aug 21 – Sep 20 | Sep 18 | 50–70 | very tender |
| Cabbage | Aug 26 – Sep 7 | — | 65–90 | hardy |
| Carrot | Aug 26 – Sep 7 | Aug 27 | 65–85 | semi-hardy |
| Collards | Aug 26 – Sep 17 | Sep 11–16 | 55–85 | hardy |
| Cucumber | Aug 26 – Sep 8 | — | 50–70 | tender |
| Broccoli | Aug 31 – Sep 17 | Sep 11–16 | 55–80 | hardy |
| Cauliflower | Aug 31 – Sep 17 | Sep 11–16 | 55–80 | semi-hardy |
| Green Beans (bush) | Aug 31 – Sep 8 | — | 50–65 | tender |
| Lettuce (head) | Aug 31 – Sep 12 | Sep 11–12 | 60–85 | semi-hardy |
| Peas (English/snap) | Aug 31 – Sep 17 | — | 55–75 | hardy |
| Beet | Sep 5 – Sep 22 | — | 50–65 | semi-hardy |
| Kale | Sep 5 – Sep 22 | Sep 11–16 | 50–65 | hardy |
| Swiss Chard | Sep 5 – Sep 22 | Sep 11–16 | 50–60 | semi-hardy |
| Zucchini / Summer Squash | Sep 5 – Sep 13 | — | 45–60 | tender |
| Basil | Sep 10 – Sep 28 | Sep 11–16 | 30–60 | very tender |
| Kohlrabi | Sep 10 – Sep 27 | Sep 11–16 | 45–60 | hardy |
| Cilantro | Sep 15 – Sep 27 | Sep 15–17 | 45–70 | semi-hardy |
| Lettuce (leaf) | Sep 15 – Oct 2 | Sep 15–17 | 40–55 | semi-hardy |
| Turnip | Sep 15 – Oct 2 | Sep 27–Oct 2 | 40–60 | hardy |
| Spinach | Sep 20 – Oct 7 | — | 35–50 | hardy |
| Dill | Sep 25 – Oct 2 | — | 40–60 | semi-hardy |
| Radish | Sep 25 – Oct 20 | Sep 27–Oct 2 | 22–35 | hardy |
| Garlic | Nov 9 – Dec 30 | Nov 25–30 | 240–300 | hardy |
| Shallot | Nov 23 – Dec 24 | Nov 25–30 | 90–120 | hardy |
De dónde salen estos números
Las fechas de helada de esta página son normales observadas en estación, no estimaciones: vienen de Houston Intercont Ap (GHCN USW00012960), una de las 6.808 estaciones de EE. UU. de las Climate Normals 1991–2020 de la NOAA. La zona de rusticidad es del USDA Plant Hardiness Zone Map de 2023. Los tiempos de cultivo se expresan como desfases respecto a tus heladas, tomados de guías de siembra de la Extensión universitaria.
¿Qué precisión tiene todo esto?
Extension recommendations for the same crop routinely disagree by two to four weeks, and occasionally more, so these offsets should be presented as windows and starting points rather than deadlines. Three things drive the spread. (1) Regional risk tolerance: for warm-season crops, Colorado State and Utah State put tomatoes, peppers and melons out about 14 days after the last frost, while University of Missouri's calendar works out to roughly 25-35 days after the last frost and University of Maryland's window runs from the frost date itself out to 45 days past it. That is a real 6-week spread for the single most popular garden crop, and it exists because a short-season mountain state is optimizing against a short season while a humid continental state is optimizing against cold, wet spring soil. (2) Soil temperature versus calendar date: most Extension services now say the honest trigger is soil temperature at 4 inches, not the frost date, and the frost-relative number is a convenience translation. A cold, wet spring can push the real date two or three weeks past the calendar recommendation. (3) Days-to-maturity is variety-specific and is measured differently for direct-seeded versus transplanted crops - seed catalogs count from transplant date for tomatoes, peppers, eggplant and cole crops, but from sowing for roots and greens - so a 'days to maturity' range of 60-85 for tomato is genuinely 60-85 depending on which packet you bought. Additionally, the average last frost is a 50% probability, meaning half of all years have a frost after that date; Extension services commonly advise waiting 1-2 weeks past it for anything frost-tender, or being prepared to cover. Treat every number here as plus or minus about 10-14 days.
Sobre la estación en sí: una estación meteorológica es un punto. Las ciudades retienen el calor, los valles acumulan aire frío y un huerto en ladera norte puede ir dos semanas por detrás de otro a una milla. Toma esta página como punto de partida y deja que tu propio huerto la corrija: para eso está el diario de la app.
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