Les quatre dates qui comptent
| Date | Quand | Ce que cela veut dire |
|---|---|---|
| Dernier gel de printemps (50 %) | Apr 13 | Une année sur deux gèle après cette date. C’est une moyenne, pas une garantie. |
| Dernier gel de printemps (10 %) | Apr 29 | 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 %) | Oct 24 | Une année sur deux gèle avant cette date. Les cultures d’automne se comptent à rebours depuis là. |
| Premier gel d’automne (10 %) | Oct 9 | Une année à gel précoce. Si une culture doit finir, visez une récolte avant cette date. |
Semis de printemps et d’été à Kansas City
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 12 – Mar 23 | Mar 3 Full Moon |
perennial — first real harvest next season |
| Garlic cloves/sets Mieux vaut semer en automne — voir plus bas |
— | Feb 25 – Mar 28 | Mar 4–9 Waning Gibbous |
240–300 |
| Asparagus (crowns) transplant |
— | Mar 2 – Apr 6 | Mar 25 First Quarter |
perennial — first real harvest 2–3 years |
| Chives either |
Feb 16 | Mar 2 – Apr 6 | Mar 19–24 Waxing Crescent |
75–90 |
| Onion (from sets/transplants) cloves/sets |
— | Mar 2 – Apr 6 | Mar 4–9 Waning Gibbous |
90–120 |
| Peas (English/snap) direct sow |
— | Mar 2 – Apr 6 | Mar 25 First Quarter |
55–75 |
| Spinach direct sow |
— | Mar 2 – Apr 6 | Mar 19–24 Waxing Crescent |
35–50 |
| Cabbage transplant |
Feb 9 | Mar 9 – Apr 6 | Mar 19–24 Waxing Crescent |
65–90 |
| Collards either |
Mar 2 | Mar 9 – Apr 27 | Mar 19–24 Waxing Crescent |
55–85 |
| Kale either |
Mar 2 | Mar 9 – Apr 13 | Mar 19–24 Waxing Crescent |
50–65 |
| Lettuce (leaf) either |
Mar 9 | Mar 9 – May 4 | Mar 19–24 Waxing Crescent |
40–55 |
| Potato cloves/sets |
— | Mar 9 – Apr 13 | Apr 1 Full Moon |
70–120 |
| Radish direct sow |
— | Mar 9 – May 4 | Mar 9–10, Apr 2–5 Waning Gibbous |
22–35 |
| Turnip direct sow |
— | Mar 9 – Apr 20 | Mar 9–10, Apr 2–5 Waning Gibbous |
40–60 |
| Broccoli transplant |
Feb 9 | Mar 14 – Apr 13 | Mar 19–24 Waxing Crescent |
55–80 |
| Brussels Sprouts transplant |
Feb 9 | Mar 14 – Apr 13 | Mar 19–24 Waxing Crescent |
90–110 |
| Leek transplant |
Feb 2 | Mar 14 – Apr 13 | Apr 2–7 Waning Gibbous |
100–120 |
| Lettuce (head) transplant |
Feb 23 | Mar 14 – Apr 13 | Mar 19–24 Waxing Crescent |
60–85 |
| Parsley either |
Feb 9 | Mar 14 – Apr 20 | Mar 19–24 Waxing Crescent |
70–90 |
| Parsnip direct sow |
— | Mar 14 – Apr 20 | Apr 1 Full Moon |
100–150 |
| Shallot cloves/sets Mieux vaut semer en automne — voir plus bas |
— | Mar 14 – Apr 13 | Apr 2–7 Waning Gibbous |
90–120 |
| Beet direct sow |
— | Mar 16 – May 4 | Apr 1, May 1 Full Moon |
50–65 |
| Kohlrabi either |
Mar 2 | Mar 16 – Apr 20 | Mar 19–24 Waxing Crescent |
45–60 |
| Carrot direct sow |
— | Mar 23 – May 4 | Apr 1, May 1 Full Moon |
65–85 |
| Cauliflower transplant |
Feb 9 | Mar 23 – Apr 13 | Mar 23–24 Waxing Crescent |
55–80 |
| Cilantro direct sow |
— | Mar 23 – May 4 | Mar 23–24, Apr 18–21 Waxing Crescent |
45–70 |
| Swiss Chard direct sow |
— | Mar 23 – May 13 | Mar 23–24, Apr 18–21 Waxing Crescent |
50–60 |
| Dill direct sow |
— | Mar 30 – May 13 | Apr 18–22 Waxing Crescent |
40–60 |
| Cucumber either |
Mar 23 | Apr 13 – May 13 | Apr 23 First Quarter |
50–70 |
| Green Beans (bush) direct sow |
— | Apr 13 – May 28 | Apr 23, May 23 First Quarter |
50–65 |
| Oregano transplant |
Feb 16 | Apr 13 – May 4 | Apr 23 First Quarter |
cut as needed |
| Sage transplant |
Feb 16 | Apr 13 – May 4 | Apr 23 First Quarter |
cut as needed |
| Sweet Corn direct sow |
— | Apr 13 – May 28 | Apr 23, May 23 First Quarter |
60–100 |
| Thyme transplant |
Feb 16 | Apr 13 – May 4 | Apr 23 First Quarter |
cut as needed |
| Zucchini / Summer Squash either |
Mar 23 | Apr 13 – May 13 | Apr 23 First Quarter |
45–60 |
| Basil either |
Mar 2 | Apr 20 – May 13 | Apr 20–22 Waxing Crescent |
30–60 |
| Dry Beans direct sow |
— | Apr 20 – May 18 | Apr 23 First Quarter |
85–100 |
| Pole Beans direct sow |
— | Apr 20 – May 23 | Apr 23, May 23 First Quarter |
60–75 |
| Pumpkin direct sow |
Mar 23 | Apr 20 – May 18 | Apr 23 First Quarter |
90–120 |
| Rosemary transplant |
Apr 13 | Apr 20 – May 13 | Apr 23 First Quarter |
cut as needed |
| Tomatillo transplant |
Mar 2 | Apr 20 – May 13 | Apr 23 First Quarter |
60–75 |
| Tomato transplant |
Mar 2 | Apr 20 – May 13 | Apr 23 First Quarter |
60–85 |
| Winter Squash direct sow |
Mar 23 | Apr 20 – May 18 | Apr 23 First Quarter |
85–110 |
| Cantaloupe / Muskmelon either |
Mar 23 | Apr 27 – May 18 | — First Quarter |
75–90 |
| Eggplant transplant |
Feb 16 | Apr 27 – May 18 | — First Quarter |
60–90 |
| Okra direct sow |
Mar 16 | Apr 27 – May 23 | May 23 First Quarter |
50–70 |
| Pepper transplant |
Feb 16 | Apr 27 – May 18 | — First Quarter |
60–90 |
| Sweet Potato slips |
— | Apr 27 – May 23 | May 2–7 Waning Gibbous |
90–150 |
| Watermelon either |
Mar 23 | Apr 27 – May 18 | — First Quarter |
70–90 |
Semis d’automne à Kansas City
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 8 – Jul 14 | Jun 21 | 60–85 | very tender |
| Brussels Sprouts | Jun 11 – Jun 28 | Jun 15–20 | 90–110 | hardy |
| Potato | Jun 16 – Jul 18 | Jun 29 | 70–120 | semi-hardy |
| Sweet Corn | Jun 21 – Jul 14 | Jun 21 | 60–100 | tender |
| Pole Beans | Jul 1 – Jul 14 | — | 60–75 | tender |
| Parsley | Jul 4 – Jul 18 | Jul 15–18 | 70–90 | semi-hardy |
| Okra | Jul 6 – Aug 5 | Jul 21 | 50–70 | very tender |
| Cabbage | Jul 11 – Jul 23 | Jul 15–20 | 65–90 | hardy |
| Carrot | Jul 11 – Jul 23 | — | 65–85 | semi-hardy |
| Collards | Jul 11 – Aug 2 | Jul 15–20 | 55–85 | hardy |
| Cucumber | Jul 11 – Jul 24 | Jul 21 | 50–70 | tender |
| Broccoli | Jul 16 – Aug 2 | Jul 16–20 | 55–80 | hardy |
| Cauliflower | Jul 16 – Aug 2 | Jul 16–20 | 55–80 | semi-hardy |
| Green Beans (bush) | Jul 16 – Jul 24 | Jul 21 | 50–65 | tender |
| Lettuce (head) | Jul 16 – Jul 28 | Jul 16–20 | 60–85 | semi-hardy |
| Peas (English/snap) | Jul 16 – Aug 2 | Jul 21 | 55–75 | hardy |
| Beet | Jul 21 – Aug 7 | Jul 29 | 50–65 | semi-hardy |
| Kale | Jul 21 – Aug 7 | — | 50–65 | hardy |
| Swiss Chard | Jul 21 – Aug 7 | — | 50–60 | semi-hardy |
| Zucchini / Summer Squash | Jul 21 – Jul 29 | Jul 21 | 45–60 | tender |
| Basil | Jul 26 – Aug 13 | Aug 13 | 30–60 | very tender |
| Kohlrabi | Jul 26 – Aug 12 | — | 45–60 | hardy |
| Cilantro | Jul 31 – Aug 12 | — | 45–70 | semi-hardy |
| Lettuce (leaf) | Jul 31 – Aug 17 | Aug 13–17 | 40–55 | semi-hardy |
| Turnip | Jul 31 – Aug 17 | Jul 31–Aug 4 | 40–60 | hardy |
| Spinach | Aug 5 – Aug 22 | Aug 13–18 | 35–50 | hardy |
| Dill | Aug 10 – Aug 17 | Aug 13–17 | 40–60 | semi-hardy |
| Radish | Aug 10 – Sep 4 | Aug 28–Sep 2 | 22–35 | hardy |
| Garlic | Sep 24 – Nov 14 | Sep 27–Oct 2 | 240–300 | hardy |
| Shallot | Oct 8 – Nov 8 | Oct 26–31 | 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 Kansas City Intl Ap (GHCN USW00003947), 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 Kansas City
Un mot bref à chaque nouvelle et pleine lune sur ce qui est dans sa fenêtre en ce moment à Kansas City — calculé d’après les dates de gel de cette page. Gratuit, un clic pour arrêter.
We store your address to send the email and nothing else. No ads, never sold, unsubscribe any time. See our privacy policy.
Vous le voulez au jardin, sur votre téléphone ? Moon Phase Garden garde vos dates de gel, vos fenêtres de semis et la phase de lune du soir au même endroit, fonctionne hors ligne, et vous laisse remplacer ces dates par ce que fait vraiment votre jardin. Gratuit et sans publicité.
Disponible sur Google Play · Planifiez une planche · Récolter chaque mois