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Method
Rel. frost
Last spring frost (0°C) 26 May Frost 1 of 4 years · 20 years of data
Frost-free season 113 days 26 May – 16 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)
7 – 21 Apr
12 Jun
5-7 wk
26 May
17 Jul
0 wk
27 May
7 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
14 – 28 Apr
24 Jun
4-6 wk
26 May
22 Jul
0 wk
27 May
12 Jul
0 wk
Chili pepper
Capsicum annuum
Greenhouse
9 Mar – 6 Apr
13 Apr
8-12 wk
1 Jun
8 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
7 – 21 Apr
7 Jun
5-7 wk
26 May
12 Jul
0 wk
26 May
2 Jul
0 wk
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
8 Jul
6 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)
3 – 31 Mar
25 Mar
8-12 wk
26 May
0 wk
8 Jun
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
27 May
9 Jun
0 wk
27 May
30 May
0 wk
Maize
Zea mays
11 – 18 May
14 May
3-4 wk
8 Jun
2 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
30 Apr – 7 May
1 Jul
3-4 wk
28 May
22 Jul
0 wk
8 Jun
12 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
26 May
2 Jul
0 wk
26 May
22 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
7 – 21 Apr
7 Jun
5-7 wk
26 May
12 Jul
0 wk
26 May
2 Jul
0 wk
Potato
Solanum tuberosum
24 Apr – 8 May
22 May
4-6 wk
5 Jun
19 Jun
1 wk after
5 Jun
9 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
7 – 21 Apr
17 Jun
5-7 wk
26 May
22 Jul
0 wk
27 May
12 Jul
0 wk
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
9 Jun
3-4 wk
28 May
30 Jun
0 wk
8 Jun
20 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
14 – 28 Apr
19 Jun
4-6 wk
26 May
17 Jul
0 wk
Lettuce
Lactuca sativa
28 Apr – 5 May
6 Jul
3-4 wk
26 May
27 Jul
0 wk
27 May
17 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
14 – 28 Apr
19 Jun
4-6 wk
26 May
17 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
28 Apr – 12 May
29 May
2-4 wk
26 May
12 Jun
0 wk
26 May
2 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
27 May
9 Jun
0 wk
27 May
30 May
0 wk
Spinach
Spinacia oleracea
28 Apr – 5 May
21 Jul
3-4 wk
26 May
11 Aug
0 wk
23 May
1 Aug
0 wk
Sweet potato
Ipomoea batatas
20 Jun – 4 Jul
4-6 wk
1 Aug
10 wk after
Garden tomato
Solanum lycopersicum
13 – 27 Apr
23 Apr
6-8 wk
8 Jun
2 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
11 – 25 May
14 Jun
2-4 wk
8 Jun
28 Jun
2 wk after
8 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
14 – 28 Apr
19 Jun
4-6 wk
26 May
17 Jul
0 wk
Garden pea
Pisum sativum
28 Apr – 5 May
21 Jun
3-4 wk
26 May
12 Jul
0 wk
27 May
2 Jul
0 wk

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
17 – 31 Mar
17 May
8-10 wk
26 May
12 Jul
0 wk
20 Jun
2 Jul
4 wk after
Dill
Anethum graveolens
27 May
22 Jul
0 wk
Wild chives
Allium schoenoprasum
31 Mar – 14 Apr
31 May
6-8 wk
26 May
12 Jul
0 wk
27 May
2 Jul
0 wk
Spearmint
Mentha spicata
3 – 31 Mar
17 May
8-12 wk
26 May
12 Jul
0 wk
20 Jun
2 Jul
4 wk after
Coriander
Coriandrum sativum
26 May
11 Aug
0 wk
8 Jun
1 Aug
2 wk after
Garden sage
Salvia officinalis
19 Mar – 2 Apr
2 May
8-10 wk
28 May
27 Jun
0 wk
Common thyme
Thymus vulgaris
17 – 31 Mar
7 May
8-10 wk
26 May
2 Jul
0 wk
Oregano
Origanum vulgare
31 Mar – 14 Apr
21 May
6-8 wk
26 May
2 Jul
0 wk
20 Jun
22 Jun
4 wk after
Parsley
Petroselinum crispum
31 Mar – 14 Apr
21 May
6-8 wk
26 May
2 Jul
0 wk
27 May
22 Jun
0 wk
Rosemary
Salvia rosmarinus
19 Feb – 19 Mar
30 Mar
10-14 wk
28 May
8 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
30 May – 6 Jun
3-4 wk
27 Jun
5 wk after
Cornflower
Centaurea cyanus
26 May
12 Jul
0 wk
27 May
2 Jul
0 wk
Statice
Limonium sinuatum
30 Mar – 13 Apr
28 Apr
8-10 wk
8 Jun
23 Jun
2 wk after
Sweet William
Dianthus barbatus
31 Mar – 14 Apr
6-8 wk
26 May
0 wk
5 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
13 – 27 Apr
12 May
6-8 wk
8 Jun
23 Jun
2 wk after
1 Aug
10 wk after
Pinnate dahlia
Dahlia × pinnata
11 – 25 Apr
17 May
6-8 wk
6 Jun
28 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
25 Apr – 23 May
31 May
4-8 wk
20 Jun
28 Jun
4 wk after
20 Jun
4 wk after
Foxglove
Digitalis purpurea
17 – 31 Mar
8-10 wk
26 May
0 wk
8 Jun
2 wk after
Busy lizzie
Impatiens walleriana
4 Apr – 2 May
17 Jun
8-12 wk
27 Jun
12 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
13 – 27 Apr
22 May
6-8 wk
8 Jun
3 Jul
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
27 Apr – 11 May
30 Apr
4-6 wk
8 Jun
2 wk after
Chinese lantern
Physalis alkekengi
19 Mar – 2 Apr
17 Apr
8-10 wk
28 May
12 Jun
0 wk
Love in a mist
Nigella damascena
26 May
27 Jun
0 wk
27 May
17 Jun
0 wk
Strawflower
Xerochrysum bracteatum
13 – 27 Apr
2 May
6-8 wk
8 Jun
13 Jun
2 wk after
1 Aug
10 wk after
Purple-top vervain
Verbena bonariensis
5 Mar – 2 Apr
17 Apr
8-12 wk
28 May
12 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
9 Mar – 6 Apr
18 Mar
8-12 wk
1 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
16 Mar – 13 Apr
22 Apr
8-12 wk
8 Jun
17 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Fleece
13 – 27 Apr
6 May
6-8 wk
8 Jun
17 Jun
2 wk after
Corn poppy
Papaver rhoeas
26 May
12 Jul
0 wk
27 May
2 Jul
0 wk
Snapdragon
Antirrhinum majus
3 – 31 Mar
7 May
8-12 wk
26 May
2 Jul
0 wk
5 Jun
22 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
31 Mar – 21 Apr
28 May
5-8 wk
26 May
2 Jul
0 wk
Stock
Matthiola incana
31 Mar – 14 Apr
31 May
6-8 wk
26 May
12 Jul
0 wk
8 Jun
2 Jul
2 wk after
Wormwood
Artemisia absinthium
31 Mar – 14 Apr
1 May
6-8 wk
26 May
12 Jun
0 wk
8 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
27 Apr – 11 May
15 May
4-6 wk
8 Jun
12 Jun
2 wk after
Garden pansy
Viola × wittrockiana
17 – 31 Mar
17 May
8-10 wk
26 May
12 Jul
0 wk
5 Jun
2 Jul
1 wk after
Petunia
Petunia
16 Mar – 13 Apr
28 Apr
8-12 wk
8 Jun
23 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
2 – 16 Apr
1 May
6-8 wk
28 May
12 Jun
0 wk
8 Jul
6 wk after
Common zinnia
Zinnia elegans
27 Apr – 11 May
30 May
4-6 wk
8 Jun
27 Jun
2 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
27 Apr – 11 May
31 May
4-6 wk
8 Jun
28 Jun
2 wk after
8 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
4 Apr – 2 May
22 May
8-12 wk
27 Jun
17 Jul
5 wk after
Bee balm
Monarda didyma
3 – 31 Mar
17 Apr
8-12 wk
26 May
12 Jun
0 wk
20 Jun
4 wk after
Yarrow
Achillea millefolium
31 Mar – 14 Apr
1 Apr
6-8 wk
26 May
0 wk
8 Jun
2 wk after
Safflower
Carthamus tinctorius
26 May
12 Jun
0 wk
27 May
2 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
31 Mar – 14 Apr
21 May
6-8 wk
26 May
2 Jul
0 wk
10 May
22 Jun
2 wk before
Bishop's flower
Ammi majus
14 – 28 Apr
4 Jun
4-6 wk
26 May
2 Jul
0 wk
8 Jun
22 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Fleece
16 – 30 Mar
30 Mar
10-12 wk
8 Jun
8 Jun
2 wk after
Sunflower
Helianthus annuus
11 – 18 May
7 Jun
3-4 wk
8 Jun
28 Jun
2 wk after
20 Jun
4 wk after
China aster
Callistephus chinensis
13 – 27 Apr
27 May
6-8 wk
8 Jun
8 Jul
2 wk after
8 Jul
6 wk after
Annual phlox
Phlox drummondii
6 – 20 Apr
22 May
6-8 wk
1 Jun
3 Jul
1 wk after
8 Jul
6 wk after
Hollyhock
Alcea rosea
31 Mar – 14 Apr
6-8 wk
26 May
0 wk
8 Jun
2 wk after
Alpine delphinium
Delphinium elatum
3 – 31 Mar
17 Apr
8-12 wk
26 May
12 Jun
0 wk
20 Jun
4 wk after
African marigold
Tagetes erecta
13 – 27 Apr
22 May
6-8 wk
8 Jun
3 Jul
2 wk after
Black-eyed Susan
Rudbeckia hirta
2 – 16 Apr
17 May
6-8 wk
28 May
28 Jun
0 wk
8 Jul
6 wk after
Wood sage
Salvia nemorosa
17 – 31 Mar
7 Apr
8-10 wk
26 May
2 Jun
0 wk
20 Jun
4 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
26 May
12 Jul
0 wk
27 May
2 Jul
0 wk
Painted tongue
Salpiglossis sinuata
30 Mar – 13 Apr
19 Apr
8-10 wk
8 Jun
14 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
31 Mar – 14 Apr
1 May
6-8 wk
26 May
12 Jun
0 wk
8 Jun
2 wk after