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Method
Rel. frost
Last spring frost (0°C) 17 May Frost 1 of 4 years · 20 years of data
Frost-free season 139 days 17 May – 3 Oct
Probability that frost is over

75% = 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)
29 Mar – 12 Apr
14 Jun
5-7 wk
17 May
19 Jul
0 wk
21 May
9 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
5 – 19 Apr
26 Jun
4-6 wk
17 May
24 Jul
0 wk
21 May
14 Jul
1 wk after
Chili pepper
Capsicum annuum
Fleece
21 Mar – 18 Apr
24 Mar
8-12 wk
13 Jun
4 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
29 Mar – 12 Apr
9 Jun
5-7 wk
17 May
14 Jul
0 wk
17 May
4 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
16 – 23 May
6 Jun
3-4 wk
13 Jun
27 Jun
4 wk after
Florence Fennel
Foeniculum vulgare
25 May – 1 Jun
3 Jun
4-5 wk
29 Jun
1 Jul
6 wk after
5 Jul
7 wk after
Butter bean
Phaseolus lunatus
Season too short
6 – 13 Jun
3-4 wk
4 Jul
7 wk after
Onion
Allium cepa (Cepa-gruppen)
22 Feb – 22 Mar
28 Mar
8-12 wk
17 May
23 May
0 wk
7 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
21 May
12 Jun
1 wk after
21 May
2 Jun
1 wk after
Maize
Zea mays
16 – 23 May
3-4 wk
13 Jun
4 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
27 Apr – 4 May
3 Jul
3-4 wk
25 May
24 Jul
1 wk after
7 Jun
14 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
17 May
4 Jul
0 wk
17 May
24 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
29 Mar – 12 Apr
9 Jun
5-7 wk
17 May
14 Jul
0 wk
17 May
4 Jul
0 wk
Potato
Solanum tuberosum
21 Apr – 5 May
23 May
4-6 wk
2 Jun
20 Jun
2 wk after
2 Jun
10 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
29 Mar – 12 Apr
19 Jun
5-7 wk
17 May
24 Jul
0 wk
21 May
14 Jul
1 wk after
Pumpkin
Cucurbita pepo
1 – 8 Jun
11 Jun
3-4 wk
29 Jun
2 Jul
6 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
27 Apr – 4 May
31 May
3-4 wk
25 May
21 Jun
1 wk after
7 Jun
11 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
5 – 19 Apr
21 Jun
4-6 wk
17 May
19 Jul
0 wk
Lettuce
Lactuca sativa
19 – 26 Apr
8 Jul
3-4 wk
17 May
29 Jul
0 wk
21 May
19 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
5 – 19 Apr
21 Jun
4-6 wk
17 May
19 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
19 Apr – 3 May
31 May
2-4 wk
17 May
14 Jun
0 wk
17 May
4 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
21 May
12 Jun
1 wk after
21 May
2 Jun
1 wk after
Spinach
Spinacia oleracea
19 – 26 Apr
23 Jul
3-4 wk
17 May
13 Aug
0 wk
13 May
3 Aug
1 wk before
Sweet potato
Ipomoea batatas
18 Jun – 2 Jul
4-6 wk
30 Jul
11 wk after
Garden tomato
Solanum lycopersicum
18 Apr – 2 May
6-8 wk
13 Jun
4 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
16 – 30 May
13 Jun
2-4 wk
13 Jun
27 Jun
4 wk after
5 Jul
7 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
5 – 19 Apr
21 Jun
4-6 wk
17 May
19 Jul
0 wk
Garden pea
Pisum sativum
19 – 26 Apr
23 Jun
3-4 wk
17 May
14 Jul
0 wk
21 May
4 Jul
1 wk after

Herbs

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