Save the date! AGC Annual Plant Sale - Sat, 5/13/23. Find more details under EVENTS.
garden Borders and beyond
Spring is beckoning...
Cut back ornamental grasses if you have left them standing over the winter. Prune back the leaves of hellebores and epimedium to allow the flowers to take center stage. If you have not pruned back your panicle hydrangeas, early March is a good time to do so. You can prune off any dead, diseased or winter damaged wood of any shrub, but leave the main shaping/pruning of spring flowering shrubs till after flowering, or you will prune off the flower buds. Tidy up the garden beds and weed on sunny dry days. This is a good month to plant all your bare root trees, roses and shrubs. March is also a good month to survey your garden to see which plants have overgrown their space and need dividing.
in the vegetable patch
Prepping your vegetable beds.
Tidy up the vegetable garden if you have not done that last fall. As the weather continues to warm up, weeds will start growing as well. Attention to weeding, turning over the compost piles and mulching the beds with compost are activities that can precede the actual gardening season. Do this only when the soil is not too saturated to prevent damaging the soil structure.
Early March: very hardy vegetables and herbs can be sown outdoors, as long as your soil is not waterlogged, as overly wet soil will cause the seeds to rot: chervil, fennel; arugula, radishes, garlic cloves, shallots and onion sets; fava beans; peas. With the protection of a cloche, these vegetables can also be sown: Asian greens; lettuce, cilantro, beets and spinach.
Late March: Potatoes can be planted after St Patrick’s Day
Indoors: this is a good time to start vegetables for transplanting after the last frost: leeks, chives, onions, broccoli, cabbage, cauliflower and lettuce. Tomatoes, eggplants and peppers can be started indoors this month, to plant out in May as the weather warms up. Flowering annuals can also be sown now to give them a jumpstart.
For a detailed planting calendar, please refer to
- Seattle Tilth's "The Maritime Northwest Garden Guide" book
- PDF from Oregon Tilth https://tilth.org/app/uploads/2015/02/OT_PHCalendar_Archive.pdf
- Oregon extension service https://extension.oregonstate.edu/gardening/techniques/monthly-garden-calendars
- Washington State University extension service https://extension.wsu.edu/snohomish/fall-and-winter-vegetable-gardens-for-western-washington