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1.0°
Last 24h: Near frost recorded this morning at 07:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 28 Mar Frost 3 of 4 years · 20 years of data
Frost-free season 213 days 28 Mar – 27 Oct
Probability that frost is over

25% = Half of years are frost-free by this date. More about frost & season →

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Vegetables

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
11 – 25 Mar
5-7 wk
29 Apr
5 wk after
22 Mar
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
6 – 20 Mar
4-6 wk
17 Apr
3 wk after
22 Mar
1 wk before
Chili pepper
Capsicum annuum
Fleece
28 Feb – 28 Mar
8-12 wk
23 May
8 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
8 – 22 Jan
5-7 wk
26 Feb
4 wk before
15 Mar
2 wk before
Cucumber
Cucumis sativus
Fleece
25 Apr – 2 May
3-4 wk
23 May
8 wk after
Florence Fennel
Foeniculum vulgare
Fleece
18 – 25 Apr
4-5 wk
23 May
8 wk after
23 Apr
4 wk after
Butter bean
Phaseolus lunatus
Greenhouse
10 – 17 Apr
3-4 wk
8 May
6 wk after
Onion
Allium cepa (Cepa-gruppen)
3 – 31 Jan
8-12 wk
28 Mar
Vid frost
10 Apr
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
10 Apr
2 wk after
10 Apr
2 wk after
Sweetcorn
Zea mays
Fleece
15 – 22 Apr
3-4 wk
13 May
7 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
1 – 8 Apr
3-4 wk
29 Apr
5 wk after
10 Apr
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
15 Mar
2 wk before
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
8 – 22 Jan
5-7 wk
26 Feb
4 wk before
15 Mar
2 wk before
Potato
Solanum tuberosum
19 Feb – 5 Mar
4-6 wk
2 Apr
1 wk after
2 Apr
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
8 – 22 Jan
5-7 wk
26 Feb
4 wk before
22 Mar
1 wk before
Pumpkin
Cucurbita pepo
Fleece
25 Apr – 2 May
3-4 wk
23 May
8 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
1 – 8 Apr
3-4 wk
29 Apr
5 wk after
10 Apr
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
6 – 20 Mar
4-6 wk
17 Apr
3 wk after
Lettuce
Lactuca sativa
19 – 26 Feb
3-4 wk
19 Mar
1 wk before
22 Mar
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
5 – 19 Feb
4-6 wk
19 Mar
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
15 Feb – 1 Mar
2-4 wk
15 Mar
2 wk before
15 Mar
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
22 Mar
1 wk before
22 Mar
1 wk before
Spinach
Spinacia oleracea
8 – 15 Feb
3-4 wk
8 Mar
3 wk before
8 Mar
3 wk before
Sweet potato
Ipomoea batatas
29 Apr – 13 May
4-6 wk
10 Jun
11 wk after
Tomato
Solanum lycopersicum
28 Mar – 11 Apr
6-8 wk
23 May
8 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
25 Apr – 9 May
2-4 wk
23 May
8 wk after
8 May
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
6 – 20 Mar
4-6 wk
17 Apr
3 wk after
Pea
Pisum sativum
8 – 15 Feb
3-4 wk
8 Mar
3 wk before
22 Mar
1 wk before
Current date Soon Date passed

Herbs

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Basil
Ocimum basilicum
Fleece
1 – 15 Apr
4-6 wk
13 May
7 wk after
Lemon balm
Melissa officinalis
17 – 31 Jan
8-10 wk
28 Mar
Vid frost
23 Apr
4 wk after
Dill
Anethum graveolens
22 Mar
1 wk before
Chives
Allium schoenoprasum
1 – 15 Jan
6-8 wk
26 Feb
4 wk before
22 Mar
1 wk before
Spearmint
Mentha spicata
14 Dec – 11 Jan
8-12 wk
8 Mar
3 wk before
23 Apr
4 wk after
Coriander
Coriandrum sativum
10 Apr
2 wk after
Sage
Salvia officinalis
18 Feb – 4 Mar
8-10 wk
29 Apr
5 wk after
Thyme
Thymus vulgaris
6 – 20 Feb
8-10 wk
17 Apr
3 wk after
Oregano
Origanum vulgare
9 – 23 Feb
6-8 wk
6 Apr
1 wk after
23 Apr
4 wk after
Parsley
Petroselinum crispum
11 – 25 Jan
6-8 wk
8 Mar
3 wk before
22 Mar
1 wk before
Rosemary
Salvia rosmarinus
21 Jan – 18 Feb
10-14 wk
29 Apr
5 wk after
Current date Soon Date passed

Annual flowers

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Morning glory
Ipomoea tricolor
Greenhouse
25 Apr – 2 May
3-4 wk
23 May
8 wk after
Cornflower
Centaurea cyanus
8 Mar
3 wk before
22 Mar
1 wk before
Statice
Limonium sinuatum
14 – 28 Mar
8-10 wk
23 May
8 wk after
Sweet William
Dianthus barbatus
11 – 25 Jan
6-8 wk
8 Mar
3 wk before
2 Apr
1 wk after
Snow-on-the-mountain
Euphorbia marginata
28 Mar – 11 Apr
6-8 wk
23 May
8 wk after
10 Jun
11 wk after
Dahlia
Dahlia × pinnata
21 Mar – 4 Apr
6-8 wk
16 May
7 wk after
Dahlia (tubers)
Dahlia × pinnata
26 Feb – 26 Mar
4-8 wk
23 Apr
4 wk after
23 Apr
4 wk after
Foxglove
Digitalis purpurea
28 Dec – 11 Jan
8-10 wk
8 Mar
3 wk before
10 Apr
2 wk after
Busy lizzie
Impatiens walleriana
11 Mar – 8 Apr
8-12 wk
3 Jun
10 wk after
Creeping zinnia
Sanvitalia procumbens
28 Mar – 11 Apr
6-8 wk
23 May
8 wk after
Hyacinth bean
Dolichos lablab
Season too short
11 – 25 Apr
4-6 wk
23 May
8 wk after
Chinese lantern
Physalis alkekengi
18 Feb – 4 Mar
8-10 wk
29 Apr
5 wk after
Love in a mist
Nigella damascena
22 Mar
1 wk before
Strawflower
Xerochrysum bracteatum
28 Mar – 11 Apr
6-8 wk
23 May
8 wk after
10 Jun
11 wk after
Tall verbena
Verbena bonariensis
4 Feb – 4 Mar
8-12 wk
29 Apr
5 wk after
Cardoon
Cynara cardunculus
Greenhouse
29 Jan – 26 Feb
8-12 wk
23 Apr
4 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
28 Feb – 28 Mar
8-12 wk
23 May
8 wk after
Globe amaranth
Gomphrena globosa
Fleece
28 Mar – 11 Apr
6-8 wk
23 May
8 wk after
Corn poppy
Papaver rhoeas
22 Mar
1 wk before
Snapdragon
Antirrhinum majus
25 Dec – 22 Jan
8-12 wk
19 Mar
1 wk before
2 Apr
1 wk after
Flossflower
Ageratum houstonianum
Fleece
14 – 28 Mar
8-10 wk
23 May
8 wk after
Sweet pea
Lathyrus odoratus
11 Jan – 1 Feb
5-8 wk
8 Mar
3 wk before
Stock
Matthiola incana
22 Jan – 5 Feb
6-8 wk
19 Mar
1 wk before
10 Apr
2 wk after
Wormwood
Artemisia absinthium
11 – 25 Jan
6-8 wk
8 Mar
3 wk before
10 Apr
2 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
11 – 25 Apr
4-6 wk
23 May
8 wk after
Pansy
Viola × wittrockiana
18 Dec – 1 Jan
8-10 wk
26 Feb
4 wk before
2 Apr
1 wk after
Petunia
Petunia
28 Feb – 28 Mar
8-12 wk
23 May
8 wk after
Scabious
Scabiosa atropurpurea
4 – 18 Mar
6-8 wk
29 Apr
5 wk after
8 May
6 wk after
Zinnia
Zinnia elegans
11 – 25 Apr
4-6 wk
23 May
8 wk after
Common morning glory
Ipomoea purpurea
Fleece
18 Apr – 2 May
3-5 wk
23 May
8 wk after
Cosmos
Cosmos bipinnatus
11 – 25 Apr
4-6 wk
23 May
8 wk after
8 May
6 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
28 Feb – 28 Mar
8-12 wk
23 May
8 wk after
Bee balm
Monarda didyma
3 – 31 Jan
8-12 wk
28 Mar
Vid frost
23 Apr
4 wk after
Yarrow
Achillea millefolium
11 – 25 Jan
6-8 wk
8 Mar
3 wk before
10 Apr
2 wk after
Safflower
Carthamus tinctorius
8 Mar
3 wk before
22 Mar
1 wk before
Iceland poppy
Papaver nudicaule
1 – 15 Jan
6-8 wk
26 Feb
4 wk before
15 Mar
2 wk before
Bishop's flower
Ammi majus
1 – 15 Mar
4-6 wk
12 Apr
2 wk after
10 Apr
2 wk after
Drumsticks
Pycnosorus globosus
Fleece
28 Feb – 14 Mar
10-12 wk
23 May
8 wk after
Sunflower
Helianthus annuus
25 Apr – 2 May
3-4 wk
23 May
8 wk after
23 Apr
4 wk after
China aster
Callistephus chinensis
28 Mar – 11 Apr
6-8 wk
23 May
8 wk after
8 May
6 wk after
Annual phlox
Phlox drummondii
13 – 27 Mar
6-8 wk
8 May
6 wk after
8 May
6 wk after
Hollyhock
Alcea rosea
11 – 25 Jan
6-8 wk
8 Mar
3 wk before
10 Apr
2 wk after
Delphinium
Delphinium elatum
23 Jan – 20 Feb
8-12 wk
17 Apr
3 wk after
23 Apr
4 wk after
African marigold
Tagetes erecta
28 Mar – 11 Apr
6-8 wk
23 May
8 wk after
Black-eyed Susan
Rudbeckia hirta
4 – 18 Mar
6-8 wk
29 Apr
5 wk after
8 May
6 wk after
Woodland sage
Salvia nemorosa
26 Jan – 9 Feb
8-10 wk
6 Apr
1 wk after
23 Apr
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
14 Mar – 11 Apr
6-10 wk
23 May
8 wk after
California goldenpoppy
Eschscholzia californica
22 Mar
1 wk before
Painted tongue
Salpiglossis sinuata
14 – 28 Mar
8-10 wk
23 May
8 wk after
Water forget-me-not
Myosotis scorpioides
11 – 25 Jan
6-8 wk
8 Mar
3 wk before
10 Apr
2 wk after
Current date Soon Date passed