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Method
Rel. frost
Last spring frost (0°C) 25 May Frost 9 of 10 years · 20 years of data
Frost-free season 78 days 25 May – 11 Aug
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)
6 – 20 Apr
6 Jun
5-7 wk
25 May
11 Jul
0 wk
26 May
1 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
13 – 27 Apr
18 Jun
4-6 wk
25 May
16 Jul
0 wk
26 May
6 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
8 Mar – 5 Apr
8-12 wk
31 May
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
6 – 20 Apr
6 Jun
5-7 wk
25 May
11 Jul
0 wk
25 May
1 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
3 – 10 May
3-4 wk
31 May
1 wk after
Florence Fennel
Foeniculum vulgare
Greenhouse
26 Apr – 3 May
23 May
4-5 wk
31 May
20 Jun
1 wk after
7 Jun
10 Jun
2 wk after
Butter bean
Phaseolus lunatus
Season too short
5 – 12 Jun
3-4 wk
3 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Greenhouse
2 – 30 Mar
17 Mar
8-12 wk
25 May
0 wk
25 May
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
26 May
0 wk
26 May
0 wk
Maize
Zea mays
Season too short
27 Apr – 4 May
3-4 wk
25 May
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
29 Apr – 6 May
26 May
3-4 wk
27 May
16 Jun
0 wk
7 Jun
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
25 May
20 Jun
0 wk
25 May
10 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
6 – 20 Apr
6 Jun
5-7 wk
25 May
11 Jul
0 wk
25 May
1 Jul
0 wk
Potato
Solanum tuberosum
23 Apr – 7 May
4-6 wk
4 Jun
1 wk after
4 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
6 – 20 Apr
5 Jun
5-7 wk
25 May
10 Jul
0 wk
26 May
30 Jun
0 wk
Pumpkin
Cucurbita pepo
Season too short
3 – 10 May
3-4 wk
31 May
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
27 Apr – 4 May
11 May
3-4 wk
25 May
1 Jun
0 wk
31 May
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
13 – 27 Apr
18 Jun
4-6 wk
25 May
16 Jul
0 wk
Lettuce
Lactuca sativa
27 Apr – 4 May
24 Jun
3-4 wk
25 May
15 Jul
0 wk
26 May
5 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
13 – 27 Apr
18 Jun
4-6 wk
25 May
16 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
27 Apr – 11 May
6 May
2-4 wk
25 May
0 wk
25 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
26 May
0 wk
26 May
0 wk
Spinach
Spinacia oleracea
27 Apr – 4 May
10 Jul
3-4 wk
25 May
31 Jul
0 wk
22 May
21 Jul
0 wk
Sweet potato
Ipomoea batatas
19 Jun – 3 Jul
4-6 wk
31 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
30 Mar – 13 Apr
6-8 wk
25 May
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Season too short
27 Apr – 11 May
2-4 wk
25 May
0 wk
7 Jun
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
13 – 27 Apr
18 Jun
4-6 wk
25 May
16 Jul
0 wk
Garden pea
Pisum sativum
27 Apr – 4 May
9 Jun
3-4 wk
25 May
30 Jun
0 wk
26 May
20 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
19 Apr – 3 May
4-6 wk
31 May
1 wk after
Lemon balm
Melissa officinalis
16 – 30 Mar
5 May
8-10 wk
25 May
30 Jun
0 wk
19 Jun
20 Jun
4 wk after
Dill
Anethum graveolens
26 May
16 Jun
0 wk
Wild chives
Allium schoenoprasum
30 Mar – 13 Apr
30 May
6-8 wk
25 May
11 Jul
0 wk
26 May
1 Jul
0 wk
Spearmint
Mentha spicata
2 – 30 Mar
11 May
8-12 wk
25 May
6 Jul
0 wk
19 Jun
26 Jun
4 wk after
Coriander
Coriandrum sativum
25 May
6 Jul
0 wk
7 Jun
26 Jun
2 wk after
Garden sage
Salvia officinalis
18 Mar – 1 Apr
1 May
8-10 wk
27 May
26 Jun
0 wk
Common thyme
Thymus vulgaris
16 – 30 Mar
6 May
8-10 wk
25 May
1 Jul
0 wk
Oregano
Origanum vulgare
30 Mar – 13 Apr
15 May
6-8 wk
25 May
26 Jun
0 wk
19 Jun
4 wk after
Parsley
Petroselinum crispum
30 Mar – 13 Apr
15 May
6-8 wk
25 May
26 Jun
0 wk
26 May
16 Jun
0 wk
Rosemary
Salvia rosmarinus
Fleece
16 Feb – 16 Mar
13 Mar
10-14 wk
25 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
3 – 10 May
3-4 wk
31 May
1 wk after
Cornflower
Centaurea cyanus
25 May
6 Jul
0 wk
26 May
26 Jun
0 wk
Statice
Limonium sinuatum
Season too short
16 – 30 Mar
8-10 wk
25 May
0 wk
Sweet William
Dianthus barbatus
30 Mar – 13 Apr
6-8 wk
25 May
0 wk
4 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Season too short
30 Mar – 13 Apr
6-8 wk
25 May
0 wk
26 Jun
5 wk after
Pinnate dahlia
Dahlia × pinnata
Season too short
30 Mar – 13 Apr
6-8 wk
25 May
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Season too short
5 Apr – 3 May
7 Apr
4-8 wk
31 May
1 wk after
31 May
1 wk after
Foxglove
Digitalis purpurea
16 – 30 Mar
8-10 wk
25 May
0 wk
7 Jun
2 wk after
Busy lizzie
Impatiens walleriana
Season too short
8 Mar – 5 Apr
26 Mar
8-12 wk
31 May
1 wk after
Creeping zinnia
Sanvitalia procumbens
Season too short
30 Mar – 13 Apr
6-8 wk
25 May
0 wk
Hyacinth bean
Dolichos lablab
Season too short
26 Apr – 10 May
4-6 wk
7 Jun
2 wk after
Chinese lantern
Physalis alkekengi
Fleece
16 – 30 Mar
5 Apr
8-10 wk
25 May
31 May
0 wk
Love in a mist
Nigella damascena
25 May
15 Jun
0 wk
26 May
5 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Season too short
30 Mar – 13 Apr
6-8 wk
25 May
0 wk
26 Jun
5 wk after
Purple-top vervain
Verbena bonariensis
Fleece
2 – 30 Mar
5 Apr
8-12 wk
25 May
31 May
0 wk
Cardoon
Cynara cardunculus
Season too short
2 – 30 Mar
7 Mar
8-12 wk
25 May
0 wk
Regal-foxtail
Ptilotus nobilis
Season too short
8 Mar – 5 Apr
8-12 wk
31 May
1 wk after
Globe amaranth
Gomphrena globosa
Season too short
5 – 19 Apr
6-8 wk
31 May
1 wk after
Corn poppy
Papaver rhoeas
25 May
30 Jun
0 wk
26 May
20 Jun
0 wk
Snapdragon
Antirrhinum majus
2 – 30 Mar
25 Apr
8-12 wk
25 May
20 Jun
0 wk
4 Jun
10 Jun
1 wk after
Flossflower
Ageratum houstonianum
Season too short
22 Mar – 5 Apr
8-10 wk
31 May
1 wk after
Sweet pea
Lathyrus odoratus
30 Mar – 20 Apr
22 May
5-8 wk
25 May
26 Jun
0 wk
Stock
Matthiola incana
30 Mar – 13 Apr
19 May
6-8 wk
25 May
30 Jun
0 wk
7 Jun
20 Jun
2 wk after
Wormwood
Artemisia absinthium
30 Mar – 13 Apr
30 Apr
6-8 wk
25 May
11 Jun
0 wk
7 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
19 Apr – 3 May
4-6 wk
31 May
1 wk after
Garden pansy
Viola × wittrockiana
16 – 30 Mar
15 May
8-10 wk
25 May
10 Jul
0 wk
4 Jun
30 Jun
1 wk after
Petunia
Petunia
Season too short
2 – 30 Mar
8-12 wk
25 May
0 wk
Sweet Scabious
Scabiosa atropurpurea
Fleece
30 Mar – 13 Apr
19 Apr
6-8 wk
25 May
31 May
0 wk
19 Jun
4 wk after
Common zinnia
Zinnia elegans
Season too short
13 – 27 Apr
4-6 wk
25 May
0 wk
Common morning glory
Ipomoea purpurea
Season too short
26 Apr – 10 May
3-5 wk
31 May
1 wk after
Garden cosmos
Cosmos bipinnatus
Season too short
13 – 27 Apr
4-6 wk
25 May
0 wk
7 Jun
2 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
15 Mar – 12 Apr
8-12 wk
7 Jun
2 wk after
Bee balm
Monarda didyma
2 – 30 Mar
5 Apr
8-12 wk
25 May
31 May
0 wk
19 Jun
4 wk after
Yarrow
Achillea millefolium
30 Mar – 13 Apr
31 Mar
6-8 wk
25 May
0 wk
7 Jun
2 wk after
Safflower
Carthamus tinctorius
25 May
1 Jun
0 wk
26 May
0 wk
Iceland poppy
Papaver nudicaule
Season too short
30 Mar – 13 Apr
20 May
6-8 wk
25 May
1 Jul
0 wk
9 May
21 Jun
2 wk before
Bishop's flower
Ammi majus
13 – 27 Apr
23 May
4-6 wk
25 May
20 Jun
0 wk
7 Jun
10 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
8 – 22 Mar
10-12 wk
31 May
1 wk after
Sunflower
Helianthus annuus
Fleece
3 – 10 May
21 May
3-4 wk
31 May
11 Jun
1 wk after
7 Jun
2 wk after
China aster
Callistephus chinensis
Fleece
5 – 19 Apr
10 May
6-8 wk
31 May
21 Jun
1 wk after
19 Jun
4 wk after
Annual phlox
Phlox drummondii
Season too short
30 Mar – 13 Apr
6-8 wk
25 May
0 wk
7 Jun
2 wk after
Hollyhock
Alcea rosea
30 Mar – 13 Apr
6-8 wk
25 May
0 wk
7 Jun
2 wk after
Alpine delphinium
Delphinium elatum
2 – 30 Mar
5 Apr
8-12 wk
25 May
31 May
0 wk
19 Jun
4 wk after
African marigold
Tagetes erecta
Season too short
30 Mar – 13 Apr
6-8 wk
25 May
0 wk
Black-eyed Susan
Rudbeckia hirta
Fleece
30 Mar – 13 Apr
30 Apr
6-8 wk
25 May
11 Jun
0 wk
19 Jun
4 wk after
Wood sage
Salvia nemorosa
16 – 30 Mar
26 Mar
8-10 wk
25 May
0 wk
19 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
22 Mar – 19 Apr
6-10 wk
31 May
1 wk after
California goldenpoppy
Eschscholzia californica
25 May
21 Jun
0 wk
26 May
11 Jun
0 wk
Painted tongue
Salpiglossis sinuata
Greenhouse
16 – 30 Mar
25 Apr
8-10 wk
25 May
20 Jun
0 wk
Water forget-me-not
Myosotis scorpioides
30 Mar – 13 Apr
30 Apr
6-8 wk
25 May
11 Jun
0 wk
7 Jun
2 wk after