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Rel. frost
Last spring frost (0°C) 26 May Frost 9 of 10 years · 20 years of data
Frost-free season 80 days 26 May – 14 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)
7 – 21 Apr
9 Jun
5-7 wk
26 May
14 Jul
0 wk
27 May
4 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
14 – 28 Apr
21 Jun
4-6 wk
26 May
19 Jul
0 wk
27 May
9 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
9 Mar – 6 Apr
8-12 wk
1 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
Season too short
4 – 11 May
3-4 wk
1 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Greenhouse
27 Apr – 4 May
19 May
4-5 wk
1 Jun
16 Jun
1 wk after
8 Jun
2 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)
Greenhouse
3 – 31 Mar
17 Mar
8-12 wk
26 May
0 wk
26 May
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
27 May
0 wk
27 May
0 wk
Maize
Zea mays
Season too short
28 Apr – 5 May
3-4 wk
26 May
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
30 Apr – 7 May
10 Jun
3-4 wk
28 May
1 Jul
0 wk
8 Jun
21 Jun
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
26 May
16 Jun
0 wk
26 May
6 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
4-6 wk
5 Jun
1 wk after
5 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
7 – 21 Apr
1 Jun
5-7 wk
26 May
6 Jul
0 wk
27 May
26 Jun
0 wk
Pumpkin
Cucurbita pepo
Season too short
4 – 11 May
3-4 wk
1 Jun
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
28 Apr – 5 May
12 May
3-4 wk
26 May
2 Jun
0 wk
1 Jun
1 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
20 Jun
3-4 wk
26 May
11 Jul
0 wk
27 May
1 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
6 May
2-4 wk
26 May
0 wk
26 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
27 May
0 wk
27 May
0 wk
Spinach
Spinacia oleracea
28 Apr – 5 May
17 Jul
3-4 wk
26 May
7 Aug
0 wk
23 May
28 Jul
0 wk
Sweet potato
Ipomoea batatas
20 Jun – 4 Jul
4-6 wk
1 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
31 Mar – 14 Apr
6-8 wk
26 May
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Season too short
28 Apr – 12 May
2-4 wk
26 May
0 wk
8 Jun
2 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
5 Jun
3-4 wk
26 May
26 Jun
0 wk
27 May
16 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
20 Apr – 4 May
4-6 wk
1 Jun
1 wk after
Lemon balm
Melissa officinalis
17 – 31 Mar
1 May
8-10 wk
26 May
26 Jun
0 wk
20 Jun
4 wk after
Dill
Anethum graveolens
27 May
1 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
14 May
8-12 wk
26 May
9 Jul
0 wk
20 Jun
29 Jun
4 wk after
Coriander
Coriandrum sativum
26 May
21 Jul
0 wk
8 Jun
11 Jul
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
18 May
6-8 wk
26 May
29 Jun
0 wk
20 Jun
4 wk after
Parsley
Petroselinum crispum
31 Mar – 14 Apr
18 May
6-8 wk
26 May
29 Jun
0 wk
27 May
19 Jun
0 wk
Rosemary
Salvia rosmarinus
Fleece
17 Feb – 17 Mar
18 Mar
10-14 wk
26 May
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
4 – 11 May
3-4 wk
1 Jun
1 wk after
Cornflower
Centaurea cyanus
26 May
9 Jul
0 wk
27 May
29 Jun
0 wk
Statice
Limonium sinuatum
Season too short
17 – 31 Mar
8-10 wk
26 May
0 wk
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
Season too short
31 Mar – 14 Apr
6-8 wk
26 May
0 wk
27 Jun
5 wk after
Pinnate dahlia
Dahlia × pinnata
Season too short
31 Mar – 14 Apr
6-8 wk
26 May
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Season too short
6 Apr – 4 May
10 Apr
4-8 wk
1 Jun
1 wk after
1 Jun
1 wk after
Foxglove
Digitalis purpurea
17 – 31 Mar
8-10 wk
26 May
0 wk
8 Jun
2 wk after
Busy lizzie
Impatiens walleriana
Season too short
9 Mar – 6 Apr
27 Mar
8-12 wk
1 Jun
1 wk after
Creeping zinnia
Sanvitalia procumbens
Season too short
31 Mar – 14 Apr
6-8 wk
26 May
0 wk
Hyacinth bean
Dolichos lablab
Season too short
27 Apr – 11 May
4-6 wk
8 Jun
2 wk after
Chinese lantern
Physalis alkekengi
Fleece
17 – 31 Mar
1 Apr
8-10 wk
26 May
27 May
0 wk
Love in a mist
Nigella damascena
26 May
11 Jun
0 wk
27 May
1 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Season too short
31 Mar – 14 Apr
6-8 wk
26 May
0 wk
27 Jun
5 wk after
Purple-top vervain
Verbena bonariensis
Fleece
3 – 31 Mar
1 Apr
8-12 wk
26 May
27 May
0 wk
Cardoon
Cynara cardunculus
Season too short
3 – 31 Mar
14 Mar
8-12 wk
26 May
0 wk
Regal-foxtail
Ptilotus nobilis
Season too short
9 Mar – 6 Apr
8-12 wk
1 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Season too short
6 – 20 Apr
6-8 wk
1 Jun
1 wk after
Corn poppy
Papaver rhoeas
26 May
26 Jun
0 wk
27 May
16 Jun
0 wk
Snapdragon
Antirrhinum majus
3 – 31 Mar
21 Apr
8-12 wk
26 May
16 Jun
0 wk
5 Jun
6 Jun
1 wk after
Flossflower
Ageratum houstonianum
Season too short
23 Mar – 6 Apr
8-10 wk
1 Jun
1 wk after
Sweet pea
Lathyrus odoratus
31 Mar – 21 Apr
25 May
5-8 wk
26 May
29 Jun
0 wk
Stock
Matthiola incana
31 Mar – 14 Apr
15 May
6-8 wk
26 May
26 Jun
0 wk
8 Jun
16 Jun
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
Season too short
20 Apr – 4 May
4-6 wk
1 Jun
1 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
Season too short
3 – 31 Mar
8-12 wk
26 May
0 wk
Sweet Scabious
Scabiosa atropurpurea
Fleece
31 Mar – 14 Apr
15 Apr
6-8 wk
26 May
27 May
0 wk
20 Jun
4 wk after
Common zinnia
Zinnia elegans
Season too short
14 – 28 Apr
4-6 wk
26 May
0 wk
Common morning glory
Ipomoea purpurea
Season too short
27 Apr – 11 May
3-5 wk
1 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Season too short
14 – 28 Apr
4-6 wk
26 May
0 wk
8 Jun
2 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
16 Mar – 13 Apr
8-12 wk
8 Jun
2 wk after
Bee balm
Monarda didyma
3 – 31 Mar
1 Apr
8-12 wk
26 May
27 May
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
8 Jun
0 wk
27 May
29 May
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
19 May
4-6 wk
26 May
16 Jun
0 wk
8 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
9 – 23 Mar
10-12 wk
1 Jun
1 wk after
Sunflower
Helianthus annuus
Fleece
4 – 11 May
26 May
3-4 wk
1 Jun
16 Jun
1 wk after
8 Jun
2 wk after
China aster
Callistephus chinensis
Fleece
6 – 20 Apr
15 May
6-8 wk
1 Jun
26 Jun
1 wk after
20 Jun
4 wk after
Annual phlox
Phlox drummondii
Season too short
31 Mar – 14 Apr
6-8 wk
26 May
0 wk
8 Jun
2 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
1 Apr
8-12 wk
26 May
27 May
0 wk
20 Jun
4 wk after
African marigold
Tagetes erecta
Season too short
31 Mar – 14 Apr
6-8 wk
26 May
0 wk
Black-eyed Susan
Rudbeckia hirta
2 – 16 Apr
15 Apr
6-8 wk
28 May
0 wk
8 Jul
6 wk after
Wood sage
Salvia nemorosa
17 – 31 Mar
22 Mar
8-10 wk
26 May
0 wk
20 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
23 Mar – 20 Apr
6-10 wk
1 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
26 May
26 Jun
0 wk
27 May
16 Jun
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
23 Mar – 6 Apr
16 Apr
8-10 wk
1 Jun
11 Jun
1 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