Seed Starting and Planting Date Calculator for Ashburn, VA

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Here are seed-starting dates for your first spring planting. These dates are based on historical frost dates, as reported by your nearest government weather stations.

Historical data is useful way to get a sense of "typical" frost dates to give you a general sense of timing. However, it is not a replacement for good judgement. Obviously, you need to be aware of your weather this coming season. Other factors that can also influence your planting dates include soil temperature, altitude and slope of land, nearby waters, and day length. Also, keep records of your garden's conditions each year to plan more accurately.

On chart below, please note:

  • Seeds for plants with a long growing season should be started indoors during the periods shown below.
  • Seeds for plants sown in the ground should be planted during the periods shown.
  • When no dates appear in the chart, that starting method is not recommended for the particular vegetable.
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WASHINGTON DULLES INTL CLIMATE STATION

50% probability of frost free after April 23 (at WASHINGTON DULLES INTL, VA climate station).

CropStart Seeds IndoorsMoon-favorable DatesSet Out Plants/
Start Seeds Outdoors
Moon-favorable Dates
BeansApr 30-May 21Apr 30-May 10
BeetsApr 9-30Apr 12-25
BroccoliMar 11-26Mar 11-26Apr 2-23Apr 2-11
Brussels sproutsMar 11-26Mar 11-26Mar 26-Apr 16Mar 27-Apr 11
CabbageFeb 25-Mar 11Feb 26-Mar 11Mar 26-Apr 9Mar 27-Apr 9
CarrotsMar 19-Apr 2Mar 19-26
CauliflowerMar 11-26Mar 11-26Mar 26-Apr 9Mar 27-Apr 9
CeleryFeb 11-25Apr 30-May 14Apr 30-May 10
CollardsMar 11-26Mar 11-26Mar 26-Apr 16Mar 27-Apr 11
CornApr 23-May 7Apr 26-May 7
CucumbersMar 26-Apr 2Mar 27-Apr 2May 7-28May 7-10, May 25-28
EggplantFeb 11-25May 7-28May 7-10, May 25-28
KaleMar 11-26Mar 11-26Mar 26-Apr 16Mar 27-Apr 11
KohlrabiMar 26-Apr 16Mar 27-Apr 11
LeeksFeb 11-25Mar 26-Apr 16Mar 27-Apr 11
LettuceMar 11-26Mar 11-26Apr 9-May 7Apr 9-11, Apr 26-May 7
MelonsMar 26-Apr 2Mar 27-Apr 2May 7-28May 7-10, May 25-28
OkraMay 7-21May 7-10
Onion setsMar 26-Apr 16Mar 26, Apr 12-16
ParsnipsApr 2-23Apr 12-23
PeasMar 11-Apr 2Mar 11-Apr 2
PeppersFeb 11-25May 7-28May 7-10, May 25-28
Potato tubersApr 16-May 7Apr 16-25
PumpkinsMar 26-Apr 9Mar 27-Apr 9May 7-28May 7-10, May 25-28
RadishesFeb 25-Mar 19Feb 25, Mar 13-19
SpinachMar 11-Apr 2Mar 11-Apr 2
SquashMar 26-Apr 9Mar 27-Apr 9May 7-28May 7-10, May 25-28
Sweet PotatoesMar 26-Apr 2Mar 26May 7-28May 11-24
Swiss ChardMar 11-26Mar 11-26Apr 2- 9Apr 2- 9
TomatoesFeb 25-Mar 11Feb 26-Mar 11Apr 30-May 21Apr 30-May 10
TurnipsMar 26-Apr 16Mar 26, Apr 12-16
WatermelonMar 26-Apr 2Mar 27-Apr 2May 7-28May 7-10, May 25-28