Pagtatanim sa Downtown DC, DC — Moon Phase Garden

Ang apat na petsang mahalaga

Petsa	Kailan	Ano ang ibig sabihin
Huling spring frost (50%)	Apr 7	Kalahati ng mga taon, may freeze pagkatapos ng petsang ito. Average iyan, hindi garantiya.
Huling spring frost (10%)	Apr 21	Isang taon lang sa sampu ang may freeze pagkatapos nito. Gamitin ito sa mga bagay na ayaw mong ulitin.
Unang fall frost (50%)	Nov 2	Kalahati ng mga taon, may freeze bago ang petsang ito. Dito binibilang pabalik ang fall crops.
Unang fall frost (10%)	Oct 19	Taon ng maagang freeze. Kung kailangang matapos ang isang pananim, umani bago nito.

USDA zone 7b 209 araw na walang frost Modelled na tantiya

Pagtatanim sa spring & summer sa Downtown DC

Ang mga petsa ay kinuwenta mula sa sariling huling frost ng lugar na ito, hindi sa generic na zone chart. Ang “best moon days” ay ang mga araw sa loob ng bawat window na pasok sa tradisyonal na phase ng pananim — pareho sa rule na ginagamit ng app.

Pananim	Simulan indoors	Itanim sa labas	Best na moon days	Araw bago mag-ani
Strawberry (crowns) transplant	—	Feb 6 – Mar 17	Mar 3 Full Moon	perennial — first real harvest next season
Garlic cloves/sets Mas bagay itanim sa fall — tingnan sa ibaba	—	Feb 19 – Mar 22	Mar 4–9 Waning Gibbous	240–300
Asparagus (crowns) transplant	—	Feb 24 – Mar 31	Feb 24, Mar 25 First Quarter	perennial — first real harvest 2–3 years
Chives either	Feb 10	Feb 24 – Mar 31	Mar 19–24 Waxing Crescent	75–90
Onion (from sets/transplants) cloves/sets	—	Feb 24 – Mar 31	Mar 4–9 Waning Gibbous	90–120
Peas (English/snap) direct sow	—	Feb 24 – Mar 31	Feb 24, Mar 25 First Quarter	55–75
Spinach direct sow	—	Feb 24 – Mar 31	Mar 19–24 Waxing Crescent	35–50
Cabbage transplant	Feb 3	Mar 3 – Mar 31	Mar 19–24 Waxing Crescent	65–90
Collards either	Feb 24	Mar 3 – Apr 21	Mar 19–24 Waxing Crescent	55–85
Kale either	Feb 24	Mar 3 – Apr 7	Mar 19–24 Waxing Crescent	50–65
Lettuce (leaf) either	Mar 3	Mar 3 – Apr 28	Mar 19–24 Waxing Crescent	40–55
Potato cloves/sets	—	Mar 3 – Apr 7	Mar 3, Apr 1 Full Moon	70–120
Radish direct sow	—	Mar 3 – Apr 28	Mar 4–9 Waning Gibbous	22–35
Turnip direct sow	—	Mar 3 – Apr 14	Mar 4–9 Waning Gibbous	40–60
Broccoli transplant	Feb 3	Mar 8 – Apr 7	Mar 19–24 Waxing Crescent	55–80
Brussels Sprouts transplant	Feb 3	Mar 8 – Apr 7	Mar 19–24 Waxing Crescent	90–110
Leek transplant	Jan 27	Mar 8 – Apr 7	Mar 8–10, Apr 2–4 Waning Gibbous	100–120
Lettuce (head) transplant	Feb 17	Mar 8 – Apr 7	Mar 19–24 Waxing Crescent	60–85
Parsley either	Feb 3	Mar 8 – Apr 14	Mar 19–24 Waxing Crescent	70–90
Parsnip direct sow	—	Mar 8 – Apr 14	Apr 1 Full Moon	100–150
Shallot cloves/sets Mas bagay itanim sa fall — tingnan sa ibaba	—	Mar 8 – Apr 7	Mar 8–10, Apr 2–4 Waning Gibbous	90–120
Beet direct sow	—	Mar 10 – Apr 28	Apr 1 Full Moon	50–65
Kohlrabi either	Feb 24	Mar 10 – Apr 14	Mar 19–24 Waxing Crescent	45–60
Carrot direct sow	—	Mar 17 – Apr 28	Apr 1 Full Moon	65–85
Cauliflower transplant	Feb 3	Mar 17 – Apr 7	Mar 19–24 Waxing Crescent	55–80
Cilantro direct sow	—	Mar 17 – Apr 28	Mar 19–24 Waxing Crescent	45–70
Swiss Chard direct sow	—	Mar 17 – May 7	Mar 19–24 Waxing Crescent	50–60
Dill direct sow	—	Mar 24 – May 7	Mar 24, Apr 18–22 Waxing Crescent	40–60
Cucumber either	Mar 17	Apr 7 – May 7	Apr 23 First Quarter	50–70
Green Beans (bush) direct sow	—	Apr 7 – May 22	Apr 23 First Quarter	50–65
Oregano transplant	Feb 10	Apr 7 – Apr 28	Apr 23 First Quarter	cut as needed
Sage transplant	Feb 10	Apr 7 – Apr 28	Apr 23 First Quarter	cut as needed
Sweet Corn direct sow	—	Apr 7 – May 22	Apr 23 First Quarter	60–100
Thyme transplant	Feb 10	Apr 7 – Apr 28	Apr 23 First Quarter	cut as needed
Zucchini / Summer Squash either	Mar 17	Apr 7 – May 7	Apr 23 First Quarter	45–60
Basil either	Feb 24	Apr 14 – May 7	Apr 18–22 Waxing Crescent	30–60
Dry Beans direct sow	—	Apr 14 – May 12	Apr 23 First Quarter	85–100
Pole Beans direct sow	—	Apr 14 – May 17	Apr 23 First Quarter	60–75
Pumpkin direct sow	Mar 17	Apr 14 – May 12	Apr 23 First Quarter	90–120
Rosemary transplant	Apr 7	Apr 14 – May 7	Apr 23 First Quarter	cut as needed
Tomatillo transplant	Feb 24	Apr 14 – May 7	Apr 23 First Quarter	60–75
Tomato transplant	Feb 24	Apr 14 – May 7	Apr 23 First Quarter	60–85
Winter Squash direct sow	Mar 17	Apr 14 – May 12	Apr 23 First Quarter	85–110
Cantaloupe / Muskmelon either	Mar 17	Apr 21 – May 12	Apr 23 First Quarter	75–90
Eggplant transplant	Feb 10	Apr 21 – May 12	Apr 23 First Quarter	60–90
Okra direct sow	Mar 10	Apr 21 – May 17	Apr 23 First Quarter	50–70
Pepper transplant	Feb 10	Apr 21 – May 12	Apr 23 First Quarter	60–90
Sweet Potato slips	—	Apr 21 – May 17	May 2–7 Waning Gibbous	90–150
Watermelon either	Mar 17	Apr 21 – May 12	Apr 23 First Quarter	70–90

Pagtatanim sa fall sa Downtown DC

Ang fall dates ay binibilang pabalik mula sa unang frost, at may dinadagdag pang oras para sa “fall factor”: umiikli at lumalamig ang araw, kaya mas mabagal lumaki ang pananim kaysa sa pangako ng seed packet. Ang huli na paghahasik ang pinakakaraniwang dahilan ng palpak na fall garden.

Pananim	Ihasik o itanim	Best na moon days	Araw bago mag-ani	Tibay sa lamig
Tomato	Jun 17 – Jul 23	Jun 21, Jul 21	60–85	very tender
Brussels Sprouts	Jun 20 – Jul 7	Jun 20	90–110	hardy
Potato	Jun 25 – Jul 27	Jun 29	70–120	semi-hardy
Sweet Corn	Jun 30 – Jul 23	Jul 21	60–100	tender
Pole Beans	Jul 10 – Jul 23	Jul 21	60–75	tender
Parsley	Jul 13 – Jul 27	Jul 15–20	70–90	semi-hardy
Okra	Jul 15 – Aug 14	Jul 21	50–70	very tender
Cabbage	Jul 20 – Aug 1	Jul 20	65–90	hardy
Carrot	Jul 20 – Aug 1	Jul 29	65–85	semi-hardy
Collards	Jul 20 – Aug 11	Jul 20	55–85	hardy
Cucumber	Jul 20 – Aug 2	Jul 21	50–70	tender
Broccoli	Jul 25 – Aug 11	—	55–80	hardy
Cauliflower	Jul 25 – Aug 11	—	55–80	semi-hardy
Green Beans (bush)	Jul 25 – Aug 2	—	50–65	tender
Lettuce (head)	Jul 25 – Aug 6	—	60–85	semi-hardy
Peas (English/snap)	Jul 25 – Aug 11	—	55–75	hardy
Beet	Jul 30 – Aug 16	—	50–65	semi-hardy
Kale	Jul 30 – Aug 16	Aug 13–16	50–65	hardy
Swiss Chard	Jul 30 – Aug 16	Aug 13–16	50–60	semi-hardy
Zucchini / Summer Squash	Jul 30 – Aug 7	—	45–60	tender
Basil	Aug 4 – Aug 22	Aug 13–18	30–60	very tender
Kohlrabi	Aug 4 – Aug 21	Aug 13–18	45–60	hardy
Cilantro	Aug 9 – Aug 21	Aug 13–18	45–70	semi-hardy
Lettuce (leaf)	Aug 9 – Aug 26	Aug 13–18	40–55	semi-hardy
Turnip	Aug 9 – Aug 26	—	40–60	hardy
Spinach	Aug 14 – Aug 31	Aug 14–18	35–50	hardy
Dill	Aug 19 – Aug 26	—	40–60	semi-hardy
Radish	Aug 19 – Sep 13	Aug 29–Sep 3	22–35	hardy
Garlic	Oct 3 – Nov 23	Oct 27–31	240–300	hardy
Shallot	Oct 17 – Nov 17	Oct 27–31	90–120	hardy

Ang totoo: ang 50% frost date ay pustahan, hindi go signal. Kung masasaktan ka sa nawalang isang tray ng kamatis, sundin na lang ang petsang Apr 21 at maghanda pa rin ng row cover.

Saan galing ang mga numerong ito

Walang weather station na may mahabang record sa loob mismo ng Downtown DC, kaya ang frost dates na ito ay modelled, hindi observed. Galing sila sa half-degree climate grid na ginawa sa pamamagitan ng pag-fit ng freeze dates ng 6,808 NOAA station (1991–2020 Normals) sa terrain at sa USDA 2023 hardiness raster, tapos binabasa ang cell kung saan nahuhulog ang city mo. Kapag isinalang sa mga station mismo, umaabot ng mga isang linggo ang average na lihis ng model — at tumutugma nang eksakto ang zone nito sa station 67% ng panahon, at hanggang kalahating zone ang agwat sa 97%. Mga 35 by 28 miles ang sakop ng isang cell, kaya ito ay sagot na pang-neighborhood, hindi pang-bakuran. Kung may lugar na may totoong station malapit sa iyo, iyon ang gamitin.

Gaano ba talaga ito ka-tumpak?

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.

Tungkol sa station mismo: ang weather station ay iisang punto lang. Nagtatago ng init ang mga lungsod, nag-iipon ng malamig na hangin ang mga lambak, at ang hardin sa north slope ay pwedeng dalawang linggo ang atraso sa isang hardin na isang milya ang layo. Ituring mong simula lang ang page na ito at hayaang itama ito ng sarili mong hardin — para diyan mismo ang journal sa app.

Mga kalapit na lugar

Washington, DC zone 7b Washington, D.C., DC zone 8a Arlington, VA zone 7b Alexandria, VA zone 7b Germantown, MD zone 7b Columbia, MD zone 7b

Gusto mo ito sa phone, habang nasa hardin? Iniingatan ng Moon Phase Garden ang frost dates mo, ang planting windows mo at ang moon phase ngayong gabi sa iisang lugar, gumagana offline, at pwede mong palitan ang mga petsang ito base sa talagang nangyayari sa hardin mo. Libre at walang ads.

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