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Method
Rel. frost
Last spring frost (0°C) 1 Jun Frost 1 of 4 years · 20 years of data
Frost-free season 116 days 1 Jun – 25 Sep
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)
13 – 27 Apr
16 Jun
5-7 wk
1 Jun
21 Jul
0 wk
5 Jun
11 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
20 Apr – 4 May
28 Jun
4-6 wk
1 Jun
26 Jul
0 wk
5 Jun
16 Jul
1 wk after
Chili pepper
Capsicum annuum
Greenhouse
15 Mar – 12 Apr
13 Apr
8-12 wk
7 Jun
8 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
13 – 27 Apr
11 Jun
5-7 wk
1 Jun
16 Jul
0 wk
1 Jun
6 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
17 – 24 May
7 Jun
3-4 wk
14 Jun
28 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
29 May – 5 Jun
6 Jun
4-5 wk
3 Jul
4 Jul
5 wk after
20 Jul
7 wk after
Butter bean
Phaseolus lunatus
Season too short
12 – 19 Jun
3-4 wk
10 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
9 Mar – 6 Apr
30 Mar
8-12 wk
1 Jun
0 wk
22 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
5 Jun
14 Jun
1 wk after
5 Jun
1 wk after
Maize
Zea mays
Fleece
10 – 17 May
28 May
3-4 wk
7 Jun
18 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
6 – 13 May
5 Jul
3-4 wk
3 Jun
26 Jul
0 wk
22 Jun
16 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
1 Jun
6 Jul
0 wk
1 Jun
26 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
13 – 27 Apr
11 Jun
5-7 wk
1 Jun
16 Jul
0 wk
1 Jun
6 Jul
0 wk
Potato
Solanum tuberosum
6 – 20 May
1 Jun
4-6 wk
17 Jun
29 Jun
2 wk after
17 Jun
19 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
13 – 27 Apr
21 Jun
5-7 wk
1 Jun
26 Jul
0 wk
5 Jun
16 Jul
1 wk after
Pumpkin
Cucurbita pepo
5 – 12 Jun
12 Jun
3-4 wk
3 Jul
3 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
6 – 13 May
10 Jun
3-4 wk
3 Jun
1 Jul
0 wk
22 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
20 Apr – 4 May
23 Jun
4-6 wk
1 Jun
21 Jul
0 wk
Lettuce
Lactuca sativa
4 – 11 May
10 Jul
3-4 wk
1 Jun
31 Jul
0 wk
5 Jun
21 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
20 Apr – 4 May
23 Jun
4-6 wk
1 Jun
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
4 – 18 May
2 Jun
2-4 wk
1 Jun
16 Jun
0 wk
1 Jun
6 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
5 Jun
14 Jun
1 wk after
5 Jun
1 wk after
Spinach
Spinacia oleracea
4 – 11 May
25 Jul
3-4 wk
1 Jun
15 Aug
0 wk
28 May
5 Aug
1 wk before
Sweet potato
Ipomoea batatas
3 – 17 Jul
4-6 wk
14 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Fleece
12 – 26 Apr
7 May
6-8 wk
7 Jun
18 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
17 – 31 May
14 Jun
2-4 wk
14 Jun
28 Jun
2 wk after
20 Jul
7 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
20 Apr – 4 May
23 Jun
4-6 wk
1 Jun
21 Jul
0 wk
Garden pea
Pisum sativum
4 – 11 May
25 Jun
3-4 wk
1 Jun
16 Jul
0 wk
5 Jun
6 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
22 May – 5 Jun
4-6 wk
3 Jul
5 wk after
Lemon balm
Melissa officinalis
23 Mar – 6 Apr
21 May
8-10 wk
1 Jun
16 Jul
0 wk
6 Jul
6 Jul
5 wk after
Dill
Anethum graveolens
5 Jun
26 Jul
1 wk after
Wild chives
Allium schoenoprasum
6 – 20 Apr
4 Jun
6-8 wk
1 Jun
16 Jul
0 wk
5 Jun
6 Jul
1 wk after
Spearmint
Mentha spicata
9 Mar – 6 Apr
21 May
8-12 wk
1 Jun
16 Jul
0 wk
6 Jul
6 Jul
5 wk after
Coriander
Coriandrum sativum
1 Jun
15 Aug
0 wk
22 Jun
5 Aug
3 wk after
Garden sage
Salvia officinalis
25 Mar – 8 Apr
6 May
8-10 wk
3 Jun
1 Jul
0 wk
Common thyme
Thymus vulgaris
23 Mar – 6 Apr
11 May
8-10 wk
1 Jun
6 Jul
0 wk
Oregano
Origanum vulgare
6 – 20 Apr
25 May
6-8 wk
1 Jun
6 Jul
0 wk
6 Jul
5 wk after
Parsley
Petroselinum crispum
6 – 20 Apr
25 May
6-8 wk
1 Jun
6 Jul
0 wk
5 Jun
26 Jun
1 wk after
Rosemary
Salvia rosmarinus
25 Feb – 25 Mar
7 Apr
10-14 wk
3 Jun
16 Jun
0 wk

Annual flowers

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