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Rel. frost
Last spring frost (0°C) 31 May Frost 9 of 10 years · 20 years of data
Frost-free season 47 days 31 May – 17 Jul
Probability that frost is over

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

Herbs

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