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Method
Rel. frost
Last spring frost (0°C) 22 May Normal year · 20 years of data
Frost-free season 117 days 22 May – 16 Sep
Probability that frost is over

50% = Half of years are frost-free by this date. More about frost & season →

Custom date
Note: This location has a shorter growing season. Plants marked with Fleece, Greenhouse or Season too short need extra protection or are difficult to grow here.

Vegetables

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
3 – 17 Apr
16 Jun
5-7 wk
22 May
21 Jul
0 wk
15 May
11 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
10 – 24 Apr
28 Jun
4-6 wk
22 May
26 Jul
0 wk
15 May
16 Jul
1 wk before
Chili pepper
Capsicum annuum
Greenhouse
10 Mar – 7 Apr
13 Apr
8-12 wk
2 Jun
8 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
3 – 17 Apr
11 Jun
5-7 wk
22 May
16 Jul
0 wk
10 May
6 Jul
2 wk before
Garden cucumber
Cucumis sativus
30 May – 6 Jun
3-4 wk
27 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
23 – 30 May
4-5 wk
27 Jun
5 wk after
27 Jun
5 wk after
Butter bean
Phaseolus lunatus
Season too short
6 – 13 Jun
3-4 wk
4 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
27 Feb – 27 Mar
28 Mar
8-12 wk
22 May
23 May
0 wk
1 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
15 May
12 Jun
1 wk before
15 May
2 Jun
1 wk before
Maize
Zea mays
Fleece
5 – 12 May
28 May
3-4 wk
2 Jun
18 Jun
2 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
30 Apr – 7 May
29 Jun
3-4 wk
28 May
20 Jul
1 wk after
1 Jun
10 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
22 May
6 Jul
0 wk
10 May
26 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
3 – 17 Apr
11 Jun
5-7 wk
22 May
16 Jul
0 wk
10 May
6 Jul
2 wk before
Potato
Solanum tuberosum
15 – 29 Apr
24 May
4-6 wk
27 May
21 Jun
1 wk after
27 May
11 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
3 – 17 Apr
21 Jun
5-7 wk
22 May
26 Jul
0 wk
15 May
16 Jul
1 wk before
Pumpkin
Cucurbita pepo
30 May – 6 Jun
12 Jun
3-4 wk
27 Jun
3 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
30 Apr – 7 May
4 Jun
3-4 wk
28 May
25 Jun
1 wk after
1 Jun
15 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
10 – 24 Apr
23 Jun
4-6 wk
22 May
21 Jul
0 wk
Lettuce
Lactuca sativa
24 Apr – 1 May
10 Jul
3-4 wk
22 May
31 Jul
0 wk
15 May
21 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
10 – 24 Apr
23 Jun
4-6 wk
22 May
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
12 – 26 Apr
31 May
2-4 wk
10 May
14 Jun
2 wk before
10 May
4 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
15 May
12 Jun
1 wk before
15 May
2 Jun
1 wk before
Spinach
Spinacia oleracea
24 Apr – 1 May
25 Jul
3-4 wk
22 May
15 Aug
0 wk
4 May
5 Aug
3 wk before
Sweet potato
Ipomoea batatas
18 Jun – 2 Jul
4-6 wk
30 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
7 – 21 Apr
7 May
6-8 wk
2 Jun
18 Jun
2 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
13 – 27 May
14 Jun
2-4 wk
10 Jun
28 Jun
3 wk after
27 Jun
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
10 – 24 Apr
23 Jun
4-6 wk
22 May
21 Jul
0 wk
Garden pea
Pisum sativum
24 Apr – 1 May
25 Jun
3-4 wk
22 May
16 Jul
0 wk
15 May
6 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
16 – 30 May
21 May
4-6 wk
27 Jun
5 wk after
Lemon balm
Melissa officinalis
13 – 27 Mar
21 May
8-10 wk
22 May
16 Jul
0 wk
12 Jun
6 Jul
3 wk after
Dill
Anethum graveolens
15 May
20 Jul
1 wk before
Wild chives
Allium schoenoprasum
27 Mar – 10 Apr
4 Jun
6-8 wk
22 May
16 Jul
0 wk
15 May
6 Jul
1 wk before
Spearmint
Mentha spicata
27 Feb – 27 Mar
21 May
8-12 wk
22 May
16 Jul
0 wk
12 Jun
6 Jul
3 wk after
Coriander
Coriandrum sativum
22 May
9 Aug
0 wk
1 Jun
30 Jul
1 wk after
Garden sage
Salvia officinalis
19 Mar – 2 Apr
6 May
8-10 wk
28 May
1 Jul
1 wk after
Common thyme
Thymus vulgaris
13 – 27 Mar
11 May
8-10 wk
22 May
6 Jul
0 wk
Oregano
Origanum vulgare
27 Mar – 10 Apr
25 May
6-8 wk
22 May
6 Jul
0 wk
12 Jun
26 Jun
3 wk after
Parsley
Petroselinum crispum
27 Mar – 10 Apr
25 May
6-8 wk
22 May
6 Jul
0 wk
15 May
26 Jun
1 wk before
Rosemary
Salvia rosmarinus
19 Feb – 19 Mar
26 Mar
10-14 wk
28 May
4 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
30 May – 6 Jun
3-4 wk
27 Jun
5 wk after
Cornflower
Centaurea cyanus
22 May
16 Jul
0 wk
15 May
6 Jul
1 wk before
Statice
Limonium sinuatum
1 – 15 Apr
28 Apr
8-10 wk
10 Jun
23 Jun
3 wk after
Sweet William
Dianthus barbatus
27 Mar – 10 Apr
6-8 wk
22 May
0 wk
27 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
15 – 29 Apr
12 May
6-8 wk
10 Jun
23 Jun
3 wk after
30 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
10 – 24 Apr
13 May
6-8 wk
5 Jun
24 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
17 Apr – 15 May
27 May
4-8 wk
12 Jun
24 Jun
3 wk after
12 Jun
14 Jun
3 wk after
Foxglove
Digitalis purpurea
13 – 27 Mar
8-10 wk
22 May
0 wk
1 Jun
1 wk after
Busy lizzie
Impatiens walleriana
4 Apr – 2 May
14 Jun
8-12 wk
27 Jun
9 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
15 – 29 Apr
22 May
6-8 wk
10 Jun
3 Jul
3 wk after
Hyacinth bean
Dolichos lablab
Season too short
29 Apr – 13 May
4-6 wk
10 Jun
3 wk after
Chinese lantern
Physalis alkekengi
19 Mar – 2 Apr
15 Apr
8-10 wk
28 May
10 Jun
1 wk after
Love in a mist
Nigella damascena
22 May
1 Jul
0 wk
15 May
21 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
15 – 29 Apr
2 May
6-8 wk
10 Jun
13 Jun
3 wk after
30 Jul
10 wk after
Purple-top vervain
Verbena bonariensis
5 Mar – 2 Apr
15 Apr
8-12 wk
28 May
10 Jun
1 wk after
Cardoon
Cynara cardunculus
Greenhouse
27 Feb – 27 Mar
22 Mar
8-12 wk
22 May
0 wk
Regal-foxtail
Ptilotus nobilis
4 Apr – 2 May
13 Apr
8-12 wk
27 Jun
5 wk after
Globe amaranth
Gomphrena globosa
2 – 16 May
6-8 wk
27 Jun
5 wk after
Corn poppy
Papaver rhoeas
22 May
16 Jul
0 wk
15 May
6 Jul
1 wk before
Snapdragon
Antirrhinum majus
27 Feb – 27 Mar
11 May
8-12 wk
22 May
6 Jul
0 wk
27 May
26 Jun
1 wk after
Flossflower
Ageratum houstonianum
18 Apr – 2 May
8 May
8-10 wk
27 Jun
3 Jul
5 wk after
Sweet pea
Lathyrus odoratus
27 Mar – 17 Apr
1 Jun
5-8 wk
22 May
6 Jul
0 wk
Stock
Matthiola incana
27 Mar – 10 Apr
4 Jun
6-8 wk
22 May
16 Jul
0 wk
1 Jun
6 Jul
1 wk after
Wormwood
Artemisia absinthium
27 Mar – 10 Apr
5 May
6-8 wk
22 May
16 Jun
0 wk
1 Jun
6 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
29 Apr – 13 May
12 May
4-6 wk
10 Jun
3 wk after
Garden pansy
Viola × wittrockiana
13 – 27 Mar
21 May
8-10 wk
22 May
16 Jul
0 wk
27 May
6 Jul
1 wk after
Petunia
Petunia
18 Mar – 15 Apr
28 Apr
8-12 wk
10 Jun
23 Jun
3 wk after
Sweet Scabious
Scabiosa atropurpurea
2 – 16 Apr
29 Apr
6-8 wk
28 May
10 Jun
1 wk after
27 Jun
5 wk after
Common zinnia
Zinnia elegans
29 Apr – 13 May
27 May
4-6 wk
10 Jun
24 Jun
3 wk after
Common morning glory
Ipomoea purpurea
23 May – 6 Jun
28 May
3-5 wk
27 Jun
5 wk after
Garden cosmos
Cosmos bipinnatus
29 Apr – 13 May
27 May
4-6 wk
10 Jun
24 Jun
3 wk after
27 Jun
5 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
4 Apr – 2 May
19 May
8-12 wk
27 Jun
14 Jul
5 wk after
Bee balm
Monarda didyma
27 Feb – 27 Mar
21 Apr
8-12 wk
22 May
16 Jun
0 wk
12 Jun
3 wk after
Yarrow
Achillea millefolium
27 Mar – 10 Apr
5 Apr
6-8 wk
22 May
0 wk
1 Jun
1 wk after
Safflower
Carthamus tinctorius
22 May
16 Jun
0 wk
15 May
6 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
27 Mar – 10 Apr
25 May
6-8 wk
22 May
6 Jul
0 wk
13 Apr
26 Jun
6 wk before
Bishop's flower
Ammi majus
10 – 24 Apr
8 Jun
4-6 wk
22 May
6 Jul
0 wk
1 Jun
26 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Fleece
18 Mar – 1 Apr
26 Mar
10-12 wk
10 Jun
3 wk after
Sunflower
Helianthus annuus
13 – 20 May
3 Jun
3-4 wk
10 Jun
24 Jun
3 wk after
12 Jun
14 Jun
3 wk after
China aster
Callistephus chinensis
15 – 29 Apr
23 May
6-8 wk
10 Jun
4 Jul
3 wk after
27 Jun
5 wk after
Annual phlox
Phlox drummondii
7 – 21 Apr
22 May
6-8 wk
2 Jun
3 Jul
2 wk after
27 Jun
5 wk after
Hollyhock
Alcea rosea
27 Mar – 10 Apr
6-8 wk
22 May
0 wk
1 Jun
1 wk after
Alpine delphinium
Delphinium elatum
27 Feb – 27 Mar
21 Apr
8-12 wk
22 May
16 Jun
0 wk
12 Jun
3 wk after
African marigold
Tagetes erecta
15 – 29 Apr
22 May
6-8 wk
10 Jun
3 Jul
3 wk after
Black-eyed Susan
Rudbeckia hirta
2 – 16 Apr
13 May
6-8 wk
28 May
24 Jun
1 wk after
27 Jun
5 wk after
Wood sage
Salvia nemorosa
13 – 27 Mar
11 Apr
8-10 wk
22 May
6 Jun
0 wk
12 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
18 Apr – 16 May
7 May
6-10 wk
27 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
22 May
15 Jul
0 wk
15 May
5 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
1 – 15 Apr
20 Apr
8-10 wk
10 Jun
15 Jun
3 wk after
Water forget-me-not
Myosotis scorpioides
27 Mar – 10 Apr
5 May
6-8 wk
22 May
16 Jun
0 wk
1 Jun
6 Jun
1 wk after