Les quatre dates qui comptent
| Date | Quand | Ce que cela veut dire |
|---|---|---|
| Dernier gel de printemps (50 %) | Apr 26 | Une année sur deux gèle après cette date. C’est une moyenne, pas une garantie. |
| Dernier gel de printemps (10 %) | May 13 | Une année sur dix seulement gèle après. À retenir pour ce que vous ne pouvez pas vous permettre de resemer. |
| Premier gel d’automne (50 %) | Nov 4 | Une année sur deux gèle avant cette date. Les cultures d’automne se comptent à rebours depuis là. |
| Premier gel d’automne (10 %) | Oct 21 | Une année à gel précoce. Si une culture doit finir, visez une récolte avant cette date. |
Semis de printemps et d’été à Erie
Les dates sont calculées à partir du dernier gel propre à ce lieu, pas d’un tableau générique par zone. Les « meilleurs jours lunaires » sont les jours de chaque fenêtre qui tombent dans la phase traditionnelle de la culture — la règle même de l’application.
| Culture | Semis à l’abri | Plantation dehors | Meilleurs jours lunaires | Jours avant récolte |
|---|---|---|---|---|
| Strawberry (crowns) transplant |
— | Feb 25 – Apr 5 | Mar 3, Apr 1 Full Moon |
perennial — first real harvest next season |
| Garlic cloves/sets Mieux vaut semer en automne — voir plus bas |
— | Mar 10 – Apr 10 | Mar 10, Apr 2–6 Waning Gibbous |
240–300 |
| Asparagus (crowns) transplant |
— | Mar 15 – Apr 19 | Mar 25 First Quarter |
perennial — first real harvest 2–3 years |
| Chives either |
Mar 1 | Mar 15 – Apr 19 | Mar 19–24 Waxing Crescent |
75–90 |
| Onion (from sets/transplants) cloves/sets |
— | Mar 15 – Apr 19 | Apr 2–7 Waning Gibbous |
90–120 |
| Peas (English/snap) direct sow |
— | Mar 15 – Apr 19 | Mar 25 First Quarter |
55–75 |
| Spinach direct sow |
— | Mar 15 – Apr 19 | Mar 19–24 Waxing Crescent |
35–50 |
| Cabbage transplant |
Feb 22 | Mar 22 – Apr 19 | Mar 22–24, Apr 18–19 Waxing Crescent |
65–90 |
| Collards either |
Mar 15 | Mar 22 – May 10 | Mar 22–24, Apr 18–20 Waxing Crescent |
55–85 |
| Kale either |
Mar 15 | Mar 22 – Apr 26 | Mar 22–24, Apr 18–20 Waxing Crescent |
50–65 |
| Lettuce (leaf) either |
Mar 22 | Mar 22 – May 17 | Mar 22–24, Apr 18–20 Waxing Crescent |
40–55 |
| Potato cloves/sets |
— | Mar 22 – Apr 26 | Apr 1 Full Moon |
70–120 |
| Radish direct sow |
— | Mar 22 – May 17 | Apr 2–7 Waning Gibbous |
22–35 |
| Turnip direct sow |
— | Mar 22 – May 3 | Apr 2–7 Waning Gibbous |
40–60 |
| Broccoli transplant |
Feb 22 | Mar 27 – Apr 26 | Apr 18–22 Waxing Crescent |
55–80 |
| Brussels Sprouts transplant |
Feb 22 | Mar 27 – Apr 26 | Apr 18–22 Waxing Crescent |
90–110 |
| Leek transplant |
Feb 15 | Mar 27 – Apr 26 | Apr 2–7 Waning Gibbous |
100–120 |
| Lettuce (head) transplant |
Mar 8 | Mar 27 – Apr 26 | Apr 18–22 Waxing Crescent |
60–85 |
| Parsley either |
Feb 22 | Mar 27 – May 3 | Apr 18–22 Waxing Crescent |
70–90 |
| Parsnip direct sow |
— | Mar 27 – May 3 | Apr 1, May 1 Full Moon |
100–150 |
| Shallot cloves/sets Mieux vaut semer en automne — voir plus bas |
— | Mar 27 – Apr 26 | Apr 2–7 Waning Gibbous |
90–120 |
| Beet direct sow |
— | Mar 29 – May 17 | Apr 1, May 1 Full Moon |
50–65 |
| Kohlrabi either |
Mar 15 | Mar 29 – May 3 | Apr 18–22 Waxing Crescent |
45–60 |
| Carrot direct sow |
— | Apr 5 – May 17 | May 1 Full Moon |
65–85 |
| Cauliflower transplant |
Feb 22 | Apr 5 – Apr 26 | Apr 18–22 Waxing Crescent |
55–80 |
| Cilantro direct sow |
— | Apr 5 – May 17 | Apr 18–22, May 17 Waxing Crescent |
45–70 |
| Swiss Chard direct sow |
— | Apr 5 – May 26 | Apr 18–22, May 17 Waxing Crescent |
50–60 |
| Dill direct sow |
— | Apr 12 – May 26 | Apr 18–22, May 17 Waxing Crescent |
40–60 |
| Cucumber either |
Apr 5 | Apr 26 – May 26 | May 23 First Quarter |
50–70 |
| Green Beans (bush) direct sow |
— | Apr 26 – Jun 10 | May 23 First Quarter |
50–65 |
| Oregano transplant |
Mar 1 | Apr 26 – May 17 | — First Quarter |
cut as needed |
| Sage transplant |
Mar 1 | Apr 26 – May 17 | — First Quarter |
cut as needed |
| Sweet Corn direct sow |
— | Apr 26 – Jun 10 | May 23 First Quarter |
60–100 |
| Thyme transplant |
Mar 1 | Apr 26 – May 17 | — First Quarter |
cut as needed |
| Zucchini / Summer Squash either |
Apr 5 | Apr 26 – May 26 | May 23 First Quarter |
45–60 |
| Basil either |
Mar 15 | May 3 – May 26 | May 17–22 Waxing Crescent |
30–60 |
| Dry Beans direct sow |
— | May 3 – May 31 | May 23 First Quarter |
85–100 |
| Pole Beans direct sow |
— | May 3 – Jun 5 | May 23 First Quarter |
60–75 |
| Pumpkin direct sow |
Apr 5 | May 3 – May 31 | May 23 First Quarter |
90–120 |
| Rosemary transplant |
Apr 26 | May 3 – May 26 | May 23 First Quarter |
cut as needed |
| Tomatillo transplant |
Mar 15 | May 3 – May 26 | May 23 First Quarter |
60–75 |
| Tomato transplant |
Mar 15 | May 3 – May 26 | May 23 First Quarter |
60–85 |
| Winter Squash direct sow |
Apr 5 | May 3 – May 31 | May 23 First Quarter |
85–110 |
| Cantaloupe / Muskmelon either |
Apr 5 | May 10 – May 31 | May 23 First Quarter |
75–90 |
| Eggplant transplant |
Mar 1 | May 10 – May 31 | May 23 First Quarter |
60–90 |
| Okra direct sow |
Mar 29 | May 10 – Jun 5 | May 23 First Quarter |
50–70 |
| Pepper transplant |
Mar 1 | May 10 – May 31 | May 23 First Quarter |
60–90 |
| Sweet Potato slips |
— | May 10 – Jun 5 | Jun 1–5 Waning Gibbous |
90–150 |
| Watermelon either |
Apr 5 | May 10 – May 31 | May 23 First Quarter |
70–90 |
Semis d’automne à Erie
Les dates d’automne se comptent à rebours depuis le premier gel, et elles rajoutent du temps pour le « facteur d’automne » : les jours raccourcissent et refroidissent, donc une culture pousse plus lentement que ne le promet le sachet. Semer trop tard est de loin la première cause d’échec d’un potager d’automne.
| Culture | Semer ou mettre en place | Meilleurs jours lunaires | Jours avant récolte | Rusticité |
|---|---|---|---|---|
| Tomato | Jun 19 – Jul 25 | Jun 21, Jul 21 | 60–85 | very tender |
| Brussels Sprouts | Jun 22 – Jul 9 | — | 90–110 | hardy |
| Potato | Jun 27 – Jul 29 | Jun 29, Jul 29 | 70–120 | semi-hardy |
| Sweet Corn | Jul 2 – Jul 25 | Jul 21 | 60–100 | tender |
| Pole Beans | Jul 12 – Jul 25 | Jul 21 | 60–75 | tender |
| Parsley | Jul 15 – Jul 29 | Jul 15–20 | 70–90 | semi-hardy |
| Okra | Jul 17 – Aug 16 | Jul 21 | 50–70 | very tender |
| Cabbage | Jul 22 – Aug 3 | — | 65–90 | hardy |
| Carrot | Jul 22 – Aug 3 | Jul 29 | 65–85 | semi-hardy |
| Collards | Jul 22 – Aug 13 | Aug 13 | 55–85 | hardy |
| Cucumber | Jul 22 – Aug 4 | — | 50–70 | tender |
| Broccoli | Jul 27 – Aug 13 | Aug 13 | 55–80 | hardy |
| Cauliflower | Jul 27 – Aug 13 | Aug 13 | 55–80 | semi-hardy |
| Green Beans (bush) | Jul 27 – Aug 4 | — | 50–65 | tender |
| Lettuce (head) | Jul 27 – Aug 8 | — | 60–85 | semi-hardy |
| Peas (English/snap) | Jul 27 – Aug 13 | — | 55–75 | hardy |
| Beet | Aug 1 – Aug 18 | — | 50–65 | semi-hardy |
| Kale | Aug 1 – Aug 18 | Aug 13–18 | 50–65 | hardy |
| Swiss Chard | Aug 1 – Aug 18 | Aug 13–18 | 50–60 | semi-hardy |
| Zucchini / Summer Squash | Aug 1 – Aug 9 | — | 45–60 | tender |
| Basil | Aug 6 – Aug 24 | Aug 13–18 | 30–60 | very tender |
| Kohlrabi | Aug 6 – Aug 23 | Aug 13–18 | 45–60 | hardy |
| Cilantro | Aug 11 – Aug 23 | Aug 13–18 | 45–70 | semi-hardy |
| Lettuce (leaf) | Aug 11 – Aug 28 | Aug 13–18 | 40–55 | semi-hardy |
| Turnip | Aug 11 – Aug 28 | — | 40–60 | hardy |
| Spinach | Aug 16 – Sep 2 | Aug 16–18 | 35–50 | hardy |
| Dill | Aug 21 – Aug 28 | — | 40–60 | semi-hardy |
| Radish | Aug 21 – Sep 15 | Aug 29–Sep 3 | 22–35 | hardy |
| Garlic | Oct 5 – Nov 25 | Oct 27–31, Nov 25 | 240–300 | hardy |
| Shallot | Oct 19 – Nov 19 | Oct 27–31 | 90–120 | hardy |
D’où viennent ces chiffres
Les dates de gel de cette page sont des normales observées en station, pas des estimations : elles viennent de Erie Intl Ap (GHCN USW00014860), l’une des 6 808 stations américaines des Climate Normals 1991–2020 de la NOAA. La zone de rusticité vient de l’USDA Plant Hardiness Zone Map 2023. Le calendrier des cultures est exprimé en décalages par rapport à vos gelées, d’après les guides de semis des Extensions universitaires.
Quelle est la précision de tout cela ?
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.
Sur la station elle-même : une station météo, c’est un point. Les villes gardent leur chaleur, les vallées accumulent l’air froid, et un jardin en versant nord peut avoir deux semaines de retard sur un autre à un mile de là. Prenez cette page comme point de départ et laissez votre jardin la corriger — c’est exactement à cela que sert le journal de l’application.
Lieux proches
Rappels de semis pour Erie
Un mot bref à chaque nouvelle et pleine lune sur ce qui est dans sa fenêtre en ce moment à Erie — calculé d’après les dates de gel de cette page. Gratuit, un clic pour arrêter.
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