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Rel. frost
Last spring frost (0°C) 9 Apr Normal year · 20 years of data
Frost-free season 227 days 9 Apr – 22 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)
19 Feb – 5 Mar
17 Jun
5-7 wk
9 Apr
22 Jul
0 wk
2 Apr
12 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
26 Feb – 12 Mar
29 Jun
4-6 wk
9 Apr
27 Jul
0 wk
2 Apr
17 Jul
1 wk before
Chili pepper
Capsicum annuum
20 Feb – 20 Mar
17 Apr
8-12 wk
15 May
12 Jun
5 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
19 Feb – 5 Mar
12 Jun
5-7 wk
9 Apr
17 Jul
0 wk
28 Mar
7 Jul
2 wk before
Garden cucumber
Cucumis sativus
17 – 24 Apr
19 Jun
3-4 wk
15 May
10 Jul
5 wk after
Florence Fennel
Foeniculum vulgare
10 – 17 Apr
9 Jun
4-5 wk
15 May
7 Jul
5 wk after
15 May
27 Jun
5 wk after
Butter bean
Phaseolus lunatus
Fleece
8 – 15 May
5 Jun
3-4 wk
5 Jun
26 Jun
8 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
15 Jan – 12 Feb
2 Apr
8-12 wk
9 Apr
28 May
0 wk
28 Mar
18 May
2 wk before
Onion (sets)
Allium cepa (Cepa-gruppen)
Season too short
11 Mar
17 Jun
4 wk before
11 Mar
7 Jun
4 wk before
Maize
Zea mays
31 Mar – 7 Apr
9 Jun
3-4 wk
28 Apr
30 Jun
3 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
18 – 25 Mar
6 Jul
3-4 wk
15 Apr
27 Jul
1 wk after
19 Apr
17 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
9 Apr
7 Jul
0 wk
28 Mar
27 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
19 Feb – 5 Mar
12 Jun
5-7 wk
9 Apr
17 Jul
0 wk
28 Mar
7 Jul
2 wk before
Potato
Solanum tuberosum
Season too short
8 – 22 Feb
9 Jun
4-6 wk
22 Mar
7 Jul
3 wk before
22 Mar
27 Jun
3 wk before
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
19 Feb – 5 Mar
22 Jun
5-7 wk
9 Apr
27 Jul
0 wk
2 Apr
17 Jul
1 wk before
Pumpkin
Cucurbita pepo
17 – 24 Apr
10 Jul
3-4 wk
15 May
31 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Season too short
12 – 19 Mar
6 Jul
3-4 wk
9 Apr
27 Jul
0 wk
28 Mar
17 Jul
2 wk before
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
26 Feb – 12 Mar
24 Jun
4-6 wk
9 Apr
22 Jul
0 wk
Lettuce
Lactuca sativa
12 – 19 Mar
11 Jul
3-4 wk
9 Apr
1 Aug
0 wk
2 Apr
22 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
26 Feb – 12 Mar
24 Jun
4-6 wk
9 Apr
22 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Season too short
1 – 15 Feb
3 Jun
2-4 wk
1 Mar
17 Jun
6 wk before
1 Mar
7 Jun
6 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Season too short
11 Mar
17 Jun
4 wk before
11 Mar
7 Jun
4 wk before
Spinach
Spinacia oleracea
12 – 19 Mar
26 Jul
3-4 wk
9 Apr
16 Aug
0 wk
22 Mar
6 Aug
3 wk before
Sweet potato
Ipomoea batatas
6 – 20 May
4-6 wk
17 Jun
10 wk after
Garden tomato
Solanum lycopersicum
3 – 17 Mar
19 May
6-8 wk
28 Apr
30 Jun
3 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
31 Mar – 14 Apr
12 Jul
2-4 wk
28 Apr
26 Jul
3 wk after
15 May
16 Jul
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
26 Feb – 12 Mar
24 Jun
4-6 wk
9 Apr
22 Jul
0 wk
Garden pea
Pisum sativum
12 – 19 Mar
26 Jun
3-4 wk
9 Apr
17 Jul
0 wk
2 Apr
7 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
3 – 17 Apr
18 Jun
4-6 wk
15 May
16 Jul
5 wk after
Lemon balm
Melissa officinalis
29 Jan – 12 Feb
22 May
8-10 wk
9 Apr
17 Jul
0 wk
30 Apr
7 Jul
3 wk after
Dill
Anethum graveolens
2 Apr
27 Jul
1 wk before
Wild chives
Allium schoenoprasum
Season too short
12 – 26 Feb
5 Jun
6-8 wk
9 Apr
17 Jul
0 wk
11 Mar
7 Jul
4 wk before
Spearmint
Mentha spicata
15 Jan – 12 Feb
22 May
8-12 wk
9 Apr
17 Jul
0 wk
30 Apr
7 Jul
3 wk after
Coriander
Coriandrum sativum
9 Apr
16 Aug
0 wk
19 Apr
6 Aug
1 wk after
Garden sage
Salvia officinalis
4 – 18 Feb
7 May
8-10 wk
15 Apr
2 Jul
1 wk after
Common thyme
Thymus vulgaris
29 Jan – 12 Feb
12 May
8-10 wk
9 Apr
7 Jul
0 wk
Oregano
Origanum vulgare
12 – 26 Feb
26 May
6-8 wk
9 Apr
7 Jul
0 wk
30 Apr
27 Jun
3 wk after
Parsley
Petroselinum crispum
12 – 26 Feb
26 May
6-8 wk
9 Apr
7 Jul
0 wk
2 Apr
27 Jun
1 wk before
Rosemary
Salvia rosmarinus
7 Jan – 4 Feb
8 Apr
10-14 wk
15 Apr
17 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
17 – 24 Apr
25 Jun
3-4 wk
15 May
16 Jul
5 wk after
Cornflower
Centaurea cyanus
9 Apr
17 Jul
0 wk
2 Apr
7 Jul
1 wk before
Statice
Limonium sinuatum
17 Feb – 3 Mar
12 May
8-10 wk
28 Apr
7 Jul
3 wk after
Sweet William
Dianthus barbatus
12 – 26 Feb
6-8 wk
9 Apr
0 wk
14 Apr
1 wk after
Snow-on-the-mountain
Euphorbia marginata
3 – 17 Mar
26 May
6-8 wk
28 Apr
7 Jul
3 wk after
17 Jun
27 Jun
10 wk after
Pinnate dahlia
Dahlia × pinnata
26 Feb – 12 Mar
26 May
6-8 wk
23 Apr
7 Jul
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Season too short
11 Feb – 11 Mar
9 Jun
4-8 wk
8 Apr
7 Jul
0 wk
8 Apr
27 Jun
0 wk
Foxglove
Digitalis purpurea
29 Jan – 12 Feb
8-10 wk
9 Apr
0 wk
19 Apr
1 wk after
Busy lizzie
Impatiens walleriana
20 Feb – 20 Mar
7 Jul
8-12 wk
15 May
1 Sep
5 wk after
Creeping zinnia
Sanvitalia procumbens
3 – 17 Mar
5 Jun
6-8 wk
28 Apr
17 Jul
3 wk after
Hyacinth bean
Dolichos lablab
Fleece
3 – 17 Apr
19 May
4-6 wk
15 May
16 Jun
5 wk after
Chinese lantern
Physalis alkekengi
4 – 18 Feb
22 Apr
8-10 wk
15 Apr
17 Jun
1 wk after
Love in a mist
Nigella damascena
9 Apr
2 Jul
0 wk
2 Apr
22 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
3 – 17 Mar
16 May
6-8 wk
28 Apr
27 Jun
3 wk after
17 Jun
17 Jun
10 wk after
Purple-top vervain
Verbena bonariensis
21 Jan – 18 Feb
22 Apr
8-12 wk
15 Apr
17 Jun
1 wk after
Cardoon
Cynara cardunculus
3 Feb – 3 Mar
23 Mar
8-12 wk
28 Apr
18 May
3 wk after
Regal-foxtail
Ptilotus nobilis
20 Feb – 20 Mar
11 May
8-12 wk
15 May
6 Jul
5 wk after
Globe amaranth
Gomphrena globosa
20 Mar – 3 Apr
25 May
6-8 wk
15 May
6 Jul
5 wk after
Corn poppy
Papaver rhoeas
9 Apr
17 Jul
0 wk
2 Apr
7 Jul
1 wk before
Snapdragon
Antirrhinum majus
15 Jan – 12 Feb
12 May
8-12 wk
9 Apr
7 Jul
0 wk
14 Apr
27 Jun
1 wk after
Flossflower
Ageratum houstonianum
6 – 20 Mar
22 May
8-10 wk
15 May
17 Jul
5 wk after
Sweet pea
Lathyrus odoratus
12 Feb – 5 Mar
2 Jun
5-8 wk
9 Apr
7 Jul
0 wk
Stock
Matthiola incana
12 – 26 Feb
5 Jun
6-8 wk
9 Apr
17 Jul
0 wk
19 Apr
7 Jul
1 wk after
Wormwood
Artemisia absinthium
12 – 26 Feb
6 May
6-8 wk
9 Apr
17 Jun
0 wk
19 Apr
7 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
3 – 17 Apr
3 Jun
4-6 wk
15 May
1 Jul
5 wk after
Garden pansy
Viola × wittrockiana
29 Jan – 12 Feb
22 May
8-10 wk
9 Apr
17 Jul
0 wk
14 Apr
7 Jul
1 wk after
Petunia
Petunia
3 Feb – 3 Mar
12 May
8-12 wk
28 Apr
7 Jul
3 wk after
Sweet Scabious
Scabiosa atropurpurea
18 Feb – 4 Mar
6 May
6-8 wk
15 Apr
17 Jun
1 wk after
15 May
7 Jun
5 wk after
Common zinnia
Zinnia elegans
17 – 31 Mar
19 Jun
4-6 wk
28 Apr
17 Jul
3 wk after
Common morning glory
Ipomoea purpurea
10 – 24 Apr
25 Jun
3-5 wk
15 May
16 Jul
5 wk after
Garden cosmos
Cosmos bipinnatus
17 – 31 Mar
9 Jun
4-6 wk
28 Apr
7 Jul
3 wk after
15 May
27 Jun
5 wk after
Scarlet milkweed
Asclepias curassavica
4 Mar – 1 Apr
10 Jun
8-12 wk
27 May
5 Aug
7 wk after
Bee balm
Monarda didyma
15 Jan – 12 Feb
22 Apr
8-12 wk
9 Apr
17 Jun
0 wk
30 Apr
7 Jun
3 wk after
Yarrow
Achillea millefolium
12 – 26 Feb
6 Apr
6-8 wk
9 Apr
18 May
0 wk
19 Apr
8 May
1 wk after
Safflower
Carthamus tinctorius
9 Apr
17 Jun
0 wk
2 Apr
7 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
12 – 26 Feb
26 May
6-8 wk
9 Apr
7 Jul
0 wk
1 Mar
27 Jun
6 wk before
Bishop's flower
Ammi majus
26 Feb – 12 Mar
9 Jun
4-6 wk
9 Apr
7 Jul
0 wk
19 Apr
27 Jun
1 wk after
Drumsticks
Pycnosorus globosus
20 Feb – 6 Mar
8 Apr
10-12 wk
15 May
17 Jun
5 wk after
Sunflower
Helianthus annuus
31 Mar – 7 Apr
16 Jun
3-4 wk
28 Apr
7 Jul
3 wk after
30 Apr
27 Jun
3 wk after
China aster
Callistephus chinensis
3 – 17 Mar
5 Jun
6-8 wk
28 Apr
17 Jul
3 wk after
15 May
7 Jul
5 wk after
Annual phlox
Phlox drummondii
23 Feb – 9 Mar
5 Jun
6-8 wk
20 Apr
17 Jul
2 wk after
15 May
7 Jul
5 wk after
Hollyhock
Alcea rosea
12 – 26 Feb
6-8 wk
9 Apr
0 wk
19 Apr
1 wk after
Alpine delphinium
Delphinium elatum
15 Jan – 12 Feb
22 Apr
8-12 wk
9 Apr
17 Jun
0 wk
30 Apr
7 Jun
3 wk after
African marigold
Tagetes erecta
3 – 17 Mar
5 Jun
6-8 wk
28 Apr
17 Jul
3 wk after
Black-eyed Susan
Rudbeckia hirta
18 Feb – 4 Mar
26 May
6-8 wk
15 Apr
7 Jul
1 wk after
15 May
27 Jun
5 wk after
Wood sage
Salvia nemorosa
29 Jan – 12 Feb
12 Apr
8-10 wk
9 Apr
7 Jun
0 wk
30 Apr
28 May
3 wk after
Black-eyed susan vine
Thunbergia alata
6 Mar – 3 Apr
4 Jun
6-10 wk
15 May
16 Jul
5 wk after
California goldenpoppy
Eschscholzia californica
9 Apr
17 Jul
0 wk
2 Apr
7 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
17 Feb – 3 Mar
12 May
8-10 wk
28 Apr
7 Jul
3 wk after
Water forget-me-not
Myosotis scorpioides
Season too short
12 – 26 Feb
6 May
6-8 wk
9 Apr
17 Jun
0 wk
28 Mar
7 Jun
2 wk before