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Rel. frost
Last spring frost (0°C) 24 Apr Normal year · 20 years of data
Frost-free season 203 days 24 Apr – 13 Nov

Vegetables

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
6 – 20 Mar
22 Jun
5-7 wk
24 Apr
27 Jul
0 wk
18 Apr
17 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
13 – 27 Mar
4 Jul
4-6 wk
24 Apr
1 Aug
0 wk
18 Apr
22 Jul
1 wk before
Chili pepper
Capsicum annuum
14 Mar – 11 Apr
17 Apr
8-12 wk
6 Jun
12 Jun
6 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
6 – 20 Mar
17 Jun
5-7 wk
24 Apr
22 Jul
0 wk
11 Apr
12 Jul
2 wk before
Garden cucumber
Cucumis sativus
9 – 16 May
24 Jun
3-4 wk
6 Jun
15 Jul
6 wk after
Florence Fennel
Foeniculum vulgare
2 – 9 May
14 Jun
4-5 wk
6 Jun
12 Jul
6 wk after
4 Jun
2 Jul
6 wk after
Butter bean
Phaseolus lunatus
Fleece
4 – 11 Jun
6 Jun
3-4 wk
2 Jul
10 wk after
Onion
Allium cepa (Cepa-gruppen)
30 Jan – 27 Feb
7 Apr
8-12 wk
24 Apr
2 Jun
0 wk
7 May
23 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
18 Apr
22 Jun
1 wk before
18 Apr
12 Jun
1 wk before
Maize
Zea mays
18 – 25 Apr
14 Jun
3-4 wk
16 May
5 Jul
3 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
31 Mar – 7 Apr
11 Jul
3-4 wk
28 Apr
1 Aug
1 wk after
7 May
22 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
24 Apr
12 Jul
0 wk
11 Apr
2 Jul
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
6 – 20 Mar
17 Jun
5-7 wk
24 Apr
22 Jul
0 wk
11 Apr
12 Jul
2 wk before
Potato
Solanum tuberosum
18 Mar – 1 Apr
14 Jun
4-6 wk
29 Apr
12 Jul
1 wk after
29 Apr
2 Jul
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
6 – 20 Mar
27 Jun
5-7 wk
24 Apr
1 Aug
0 wk
18 Apr
22 Jul
1 wk before
Pumpkin
Cucurbita pepo
9 – 16 May
11 Jul
3-4 wk
6 Jun
1 Aug
6 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
31 Mar – 7 Apr
3 Jul
3-4 wk
28 Apr
24 Jul
1 wk after
7 May
14 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
13 – 27 Mar
29 Jun
4-6 wk
24 Apr
27 Jul
0 wk
Lettuce
Lactuca sativa
27 Mar – 3 Apr
16 Jul
3-4 wk
24 Apr
6 Aug
0 wk
18 Apr
27 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
13 – 27 Mar
29 Jun
4-6 wk
24 Apr
27 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
14 – 28 Mar
8 Jun
2-4 wk
11 Apr
22 Jun
2 wk before
11 Apr
12 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
18 Apr
22 Jun
1 wk before
18 Apr
12 Jun
1 wk before
Spinach
Spinacia oleracea
27 Mar – 3 Apr
31 Jul
3-4 wk
24 Apr
21 Aug
0 wk
4 Apr
11 Aug
3 wk before
Sweet potato
Ipomoea batatas
26 May – 9 Jun
4-6 wk
7 Jul
11 wk after
Garden tomato
Solanum lycopersicum
21 Mar – 4 Apr
24 May
6-8 wk
16 May
5 Jul
3 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
18 Apr – 2 May
13 Jul
2-4 wk
16 May
27 Jul
3 wk after
4 Jun
17 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
13 – 27 Mar
29 Jun
4-6 wk
24 Apr
27 Jul
0 wk
Garden pea
Pisum sativum
27 Mar – 3 Apr
1 Jul
3-4 wk
24 Apr
22 Jul
0 wk
18 Apr
12 Jul
1 wk before

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
25 Apr – 9 May
19 Jun
4-6 wk
6 Jun
17 Jul
6 wk after
Lemon balm
Melissa officinalis
13 – 27 Feb
27 May
8-10 wk
24 Apr
22 Jul
0 wk
20 May
12 Jul
4 wk after
Dill
Anethum graveolens
18 Apr
1 Aug
1 wk before
Wild chives
Allium schoenoprasum
27 Feb – 13 Mar
10 Jun
6-8 wk
24 Apr
22 Jul
0 wk
18 Apr
12 Jul
1 wk before
Spearmint
Mentha spicata
30 Jan – 27 Feb
27 May
8-12 wk
24 Apr
22 Jul
0 wk
20 May
12 Jul
4 wk after
Coriander
Coriandrum sativum
24 Apr
21 Aug
0 wk
7 May
11 Aug
2 wk after
Garden sage
Salvia officinalis
17 Feb – 3 Mar
12 May
8-10 wk
28 Apr
7 Jul
1 wk after
Common thyme
Thymus vulgaris
13 – 27 Feb
17 May
8-10 wk
24 Apr
12 Jul
0 wk
Oregano
Origanum vulgare
27 Feb – 13 Mar
31 May
6-8 wk
24 Apr
12 Jul
0 wk
20 May
2 Jul
4 wk after
Parsley
Petroselinum crispum
27 Feb – 13 Mar
31 May
6-8 wk
24 Apr
12 Jul
0 wk
18 Apr
2 Jul
1 wk before
Rosemary
Salvia rosmarinus
20 Jan – 17 Feb
13 Apr
10-14 wk
28 Apr
22 Jun
1 wk after

Annual flowers

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