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Rel. frost
Last spring frost (0°C) 27 May Frost 9 of 10 years · 20 years of data
Frost-free season 39 days 27 May – 5 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)
8 – 22 Apr
8 Jun
5-7 wk
27 May
13 Jul
0 wk
31 May
3 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
15 – 29 Apr
20 Jun
4-6 wk
27 May
18 Jul
0 wk
31 May
8 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
10 Mar – 7 Apr
8-12 wk
2 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
8 – 22 Apr
11 Jun
5-7 wk
27 May
16 Jul
0 wk
27 May
6 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
5 – 12 May
3-4 wk
2 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Greenhouse
28 Apr – 5 May
12 May
4-5 wk
2 Jun
9 Jun
1 wk after
17 Jun
3 wk after
Butter bean
Phaseolus lunatus
Season too short
7 – 14 Jun
3-4 wk
5 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Greenhouse
4 Mar – 1 Apr
18 Mar
8-12 wk
27 May
0 wk
27 May
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
31 May
1 wk after
31 May
1 wk after
Maize
Zea mays
Season too short
29 Apr – 6 May
3-4 wk
27 May
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
1 – 8 May
7 Jun
3-4 wk
29 May
28 Jun
0 wk
17 Jun
18 Jun
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
27 May
9 Jun
0 wk
27 May
30 May
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
8 – 22 Apr
11 Jun
5-7 wk
27 May
16 Jul
0 wk
27 May
6 Jul
0 wk
Potato
Solanum tuberosum
1 – 15 May
4-6 wk
12 Jun
2 wk after
12 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
8 – 22 Apr
25 May
5-7 wk
27 May
29 Jun
0 wk
31 May
19 Jun
1 wk after
Pumpkin
Cucurbita pepo
Season too short
5 – 12 May
3-4 wk
2 Jun
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
29 Apr – 6 May
4 May
3-4 wk
27 May
0 wk
6 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
15 – 29 Apr
23 Jun
4-6 wk
27 May
21 Jul
0 wk
Lettuce
Lactuca sativa
29 Apr – 6 May
13 Jun
3-4 wk
27 May
4 Jul
0 wk
31 May
24 Jun
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
15 – 29 Apr
23 Jun
4-6 wk
27 May
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
29 Apr – 13 May
6 May
2-4 wk
27 May
0 wk
27 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
31 May
1 wk after
31 May
1 wk after
Spinach
Spinacia oleracea
29 Apr – 6 May
7 Jul
3-4 wk
27 May
28 Jul
0 wk
23 May
18 Jul
1 wk before
Sweet potato
Ipomoea batatas
28 Jun – 12 Jul
4-6 wk
9 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Season too short
1 – 15 Apr
6-8 wk
27 May
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Season too short
29 Apr – 13 May
2-4 wk
27 May
0 wk
17 Jun
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
15 – 29 Apr
23 Jun
4-6 wk
27 May
21 Jul
0 wk
Garden pea
Pisum sativum
29 Apr – 6 May
29 May
3-4 wk
27 May
19 Jun
0 wk
31 May
9 Jun
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
Season too short
21 Apr – 5 May
4-6 wk
2 Jun
1 wk after
Lemon balm
Melissa officinalis
18 Mar – 1 Apr
24 Apr
8-10 wk
27 May
19 Jun
0 wk
1 Jul
5 wk after
Dill
Anethum graveolens
31 May
28 Jun
1 wk after
Wild chives
Allium schoenoprasum
1 – 15 Apr
4 Jun
6-8 wk
27 May
16 Jul
0 wk
31 May
6 Jul
1 wk after
Spearmint
Mentha spicata
4 Mar – 1 Apr
13 May
8-12 wk
27 May
8 Jul
0 wk
1 Jul
5 wk after
Coriander
Coriandrum sativum
27 May
18 Jul
0 wk
17 Jun
8 Jul
3 wk after
Garden sage
Salvia officinalis
20 Mar – 3 Apr
6 May
8-10 wk
29 May
1 Jul
0 wk
Common thyme
Thymus vulgaris
18 Mar – 1 Apr
11 May
8-10 wk
27 May
6 Jul
0 wk
Oregano
Origanum vulgare
1 – 15 Apr
17 May
6-8 wk
27 May
28 Jun
0 wk
1 Jul
5 wk after
Parsley
Petroselinum crispum
1 – 15 Apr
17 May
6-8 wk
27 May
28 Jun
0 wk
31 May
18 Jun
1 wk after
Rosemary
Salvia rosmarinus
Fleece
18 Feb – 18 Mar
11 Mar
10-14 wk
27 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
5 – 12 May
3-4 wk
2 Jun
1 wk after
Cornflower
Centaurea cyanus
27 May
8 Jul
0 wk
31 May
28 Jun
1 wk after
Statice
Limonium sinuatum
Season too short
18 Mar – 1 Apr
8-10 wk
27 May
0 wk
Sweet William
Dianthus barbatus
1 – 15 Apr
6-8 wk
27 May
0 wk
12 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
Season too short
1 – 15 Apr
6-8 wk
27 May
0 wk
7 Jul
6 wk after
Pinnate dahlia
Dahlia × pinnata
Season too short
1 – 15 Apr
6-8 wk
27 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
18 Mar – 1 Apr
8-10 wk
27 May
0 wk
17 Jun
3 wk after
Busy lizzie
Impatiens walleriana
Season too short
10 Mar – 7 Apr
27 Mar
8-12 wk
2 Jun
1 wk after
Creeping zinnia
Sanvitalia procumbens
Season too short
1 – 15 Apr
6-8 wk
27 May
0 wk
Hyacinth bean
Dolichos lablab
Season too short
28 Apr – 12 May
4-6 wk
9 Jun
2 wk after
Chinese lantern
Physalis alkekengi
Fleece
18 Mar – 1 Apr
25 Mar
8-10 wk
27 May
0 wk
Love in a mist
Nigella damascena
27 May
4 Jun
0 wk
31 May
1 wk after
Strawflower
Xerochrysum bracteatum
Season too short
1 – 15 Apr
6-8 wk
27 May
0 wk
7 Jul
6 wk after
Purple-top vervain
Verbena bonariensis
Fleece
4 Mar – 1 Apr
25 Mar
8-12 wk
27 May
0 wk
Cardoon
Cynara cardunculus
Season too short
4 Mar – 1 Apr
4 Mar
8-12 wk
27 May
0 wk
Regal-foxtail
Ptilotus nobilis
Season too short
10 Mar – 7 Apr
8-12 wk
2 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Season too short
7 – 21 Apr
6-8 wk
2 Jun
1 wk after
Corn poppy
Papaver rhoeas
27 May
19 Jun
0 wk
31 May
9 Jun
1 wk after
Snapdragon
Antirrhinum majus
4 Mar – 1 Apr
14 Apr
8-12 wk
27 May
9 Jun
0 wk
12 Jun
2 wk after
Flossflower
Ageratum houstonianum
Season too short
24 Mar – 7 Apr
8-10 wk
2 Jun
1 wk after
Sweet pea
Lathyrus odoratus
1 – 22 Apr
24 May
5-8 wk
27 May
28 Jun
0 wk
Stock
Matthiola incana
1 – 15 Apr
8 May
6-8 wk
27 May
19 Jun
0 wk
17 Jun
3 wk after
Wormwood
Artemisia absinthium
1 – 15 Apr
5 May
6-8 wk
27 May
16 Jun
0 wk
17 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
21 Apr – 5 May
4-6 wk
2 Jun
1 wk after
Garden pansy
Viola × wittrockiana
18 Mar – 1 Apr
19 May
8-10 wk
27 May
14 Jul
0 wk
12 Jun
4 Jul
2 wk after
Petunia
Petunia
Season too short
4 Mar – 1 Apr
8-12 wk
27 May
0 wk
Sweet Scabious
Scabiosa atropurpurea
Fleece
1 – 15 Apr
8 Apr
6-8 wk
27 May
0 wk
1 Jul
5 wk after
Common zinnia
Zinnia elegans
Season too short
15 – 29 Apr
4-6 wk
27 May
0 wk
Common morning glory
Ipomoea purpurea
Season too short
28 Apr – 12 May
3-5 wk
2 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Season too short
15 – 29 Apr
4-6 wk
27 May
0 wk
17 Jun
3 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
17 Mar – 14 Apr
8-12 wk
9 Jun
2 wk after
Bee balm
Monarda didyma
4 Mar – 1 Apr
25 Mar
8-12 wk
27 May
0 wk
1 Jul
5 wk after
Yarrow
Achillea millefolium
1 – 15 Apr
5 Apr
6-8 wk
27 May
0 wk
17 Jun
3 wk after
Safflower
Carthamus tinctorius
27 May
29 May
0 wk
31 May
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
1 – 15 Apr
25 May
6-8 wk
27 May
6 Jul
0 wk
9 May
26 Jun
3 wk before
Bishop's flower
Ammi majus
15 – 29 Apr
12 May
4-6 wk
27 May
9 Jun
0 wk
17 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Season too short
10 – 24 Mar
10-12 wk
2 Jun
1 wk after
Sunflower
Helianthus annuus
Fleece
5 – 12 May
19 May
3-4 wk
2 Jun
9 Jun
1 wk after
17 Jun
3 wk after
China aster
Callistephus chinensis
Fleece
7 – 21 Apr
8 May
6-8 wk
2 Jun
19 Jun
1 wk after
1 Jul
5 wk after
Annual phlox
Phlox drummondii
Season too short
1 – 15 Apr
6-8 wk
27 May
0 wk
17 Jun
3 wk after
Hollyhock
Alcea rosea
1 – 15 Apr
6-8 wk
27 May
0 wk
17 Jun
3 wk after
Alpine delphinium
Delphinium elatum
4 Mar – 1 Apr
25 Mar
8-12 wk
27 May
0 wk
1 Jul
5 wk after
African marigold
Tagetes erecta
Season too short
1 – 15 Apr
6-8 wk
27 May
0 wk
Black-eyed Susan
Rudbeckia hirta
3 – 17 Apr
18 Apr
6-8 wk
29 May
30 May
0 wk
15 Jul
7 wk after
Wood sage
Salvia nemorosa
Fleece
18 Mar – 1 Apr
24 Mar
8-10 wk
27 May
0 wk
17 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
24 Mar – 21 Apr
6-10 wk
2 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
27 May
19 Jun
0 wk
31 May
9 Jun
1 wk after
Painted tongue
Salpiglossis sinuata
Fleece
24 Mar – 7 Apr
13 Apr
8-10 wk
2 Jun
8 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
1 – 15 Apr
5 May
6-8 wk
27 May
16 Jun
0 wk
17 Jun
3 wk after