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Method
Rel. frost
Last spring frost (0°C) 27 May Frost 9 of 10 years · 20 years of data
Frost-free season 63 days 27 May – 29 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
14 Jun
5-7 wk
27 May
19 Jul
0 wk
31 May
9 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
15 – 29 Apr
26 Jun
4-6 wk
27 May
24 Jul
0 wk
31 May
14 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
9 Jun
5-7 wk
27 May
14 Jul
0 wk
27 May
4 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
30 May
4-5 wk
2 Jun
27 Jun
1 wk after
17 Jun
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)
Season too short
4 Mar – 1 Apr
16 Mar
8-12 wk
27 May
0 wk
27 May
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Fleece
23 May
24 May
1 wk before
23 May
1 wk before
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
16 Jun
3-4 wk
29 May
7 Jul
0 wk
17 Jun
27 Jun
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
27 May
27 Jun
0 wk
27 May
17 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
8 – 22 Apr
9 Jun
5-7 wk
27 May
14 Jul
0 wk
27 May
4 Jul
0 wk
Potato
Solanum tuberosum
Fleece
19 Apr – 3 May
28 Apr
4-6 wk
31 May
1 wk after
31 May
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
8 – 22 Apr
12 Jun
5-7 wk
27 May
17 Jul
0 wk
31 May
7 Jul
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
21 Jun
4-6 wk
27 May
19 Jul
0 wk
Lettuce
Lactuca sativa
29 Apr – 6 May
1 Jul
3-4 wk
27 May
22 Jul
0 wk
31 May
12 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
15 – 29 Apr
21 Jun
4-6 wk
27 May
19 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
29 Apr – 13 May
5 May
2-4 wk
27 May
0 wk
27 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Fleece
23 May
24 May
1 wk before
23 May
1 wk before
Spinach
Spinacia oleracea
29 Apr – 6 May
23 Jul
3-4 wk
27 May
13 Aug
0 wk
23 May
3 Aug
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
21 Jun
4-6 wk
27 May
19 Jul
0 wk
Garden pea
Pisum sativum
29 Apr – 6 May
16 Jun
3-4 wk
27 May
7 Jul
0 wk
31 May
27 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
12 May
8-10 wk
27 May
7 Jul
0 wk
1 Jul
5 wk after
Dill
Anethum graveolens
31 May
7 Jul
1 wk after
Wild chives
Allium schoenoprasum
1 – 15 Apr
2 Jun
6-8 wk
27 May
14 Jul
0 wk
31 May
4 Jul
1 wk after
Spearmint
Mentha spicata
4 Mar – 1 Apr
19 May
8-12 wk
27 May
14 Jul
0 wk
1 Jul
4 Jul
5 wk after
Coriander
Coriandrum sativum
27 May
27 Jul
0 wk
17 Jun
17 Jul
3 wk after
Garden sage
Salvia officinalis
20 Mar – 3 Apr
4 May
8-10 wk
29 May
29 Jun
0 wk
Common thyme
Thymus vulgaris
18 Mar – 1 Apr
9 May
8-10 wk
27 May
4 Jul
0 wk
Oregano
Origanum vulgare
1 – 15 Apr
23 May
6-8 wk
27 May
4 Jul
0 wk
1 Jul
5 wk after
Parsley
Petroselinum crispum
1 – 15 Apr
23 May
6-8 wk
27 May
4 Jul
0 wk
31 May
24 Jun
1 wk after
Rosemary
Salvia rosmarinus
Fleece
18 Feb – 18 Mar
21 Mar
10-14 wk
27 May
30 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
14 Jul
0 wk
31 May
4 Jul
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
28 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
20 Mar – 3 Apr
2 Apr
8-10 wk
29 May
0 wk
Love in a mist
Nigella damascena
27 May
22 Jun
0 wk
31 May
12 Jun
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
6 Mar – 3 Apr
2 Apr
8-12 wk
29 May
0 wk
Cardoon
Cynara cardunculus
Season too short
4 Mar – 1 Apr
20 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
7 Jul
0 wk
31 May
27 Jun
1 wk after
Snapdragon
Antirrhinum majus
4 Mar – 1 Apr
2 May
8-12 wk
27 May
27 Jun
0 wk
12 Jun
17 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
30 May
5-8 wk
27 May
4 Jul
0 wk
Stock
Matthiola incana
1 – 15 Apr
26 May
6-8 wk
27 May
7 Jul
0 wk
17 Jun
27 Jun
3 wk after
Wormwood
Artemisia absinthium
1 – 15 Apr
3 May
6-8 wk
27 May
14 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
3 – 17 Apr
16 Apr
6-8 wk
29 May
0 wk
15 Jul
7 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
12 Apr
8-12 wk
27 May
7 Jun
0 wk
1 Jul
5 wk after
Yarrow
Achillea millefolium
1 – 15 Apr
3 Apr
6-8 wk
27 May
0 wk
17 Jun
3 wk after
Safflower
Carthamus tinctorius
27 May
14 Jun
0 wk
31 May
4 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
1 – 15 Apr
23 May
6-8 wk
27 May
4 Jul
0 wk
9 May
24 Jun
3 wk before
Bishop's flower
Ammi majus
15 – 29 Apr
30 May
4-6 wk
27 May
27 Jun
0 wk
17 Jun
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
29 May
3-4 wk
2 Jun
19 Jun
1 wk after
17 Jun
3 wk after
China aster
Callistephus chinensis
Fleece
7 – 21 Apr
18 May
6-8 wk
2 Jun
29 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
12 Apr
8-12 wk
27 May
7 Jun
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
25 Apr
6-8 wk
29 May
6 Jun
0 wk
15 Jul
7 wk after
Wood sage
Salvia nemorosa
18 Mar – 1 Apr
2 Apr
8-10 wk
27 May
28 May
0 wk
1 Jul
5 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
29 Jun
0 wk
31 May
19 Jun
1 wk after
Painted tongue
Salpiglossis sinuata
Fleece
24 Mar – 7 Apr
22 Apr
8-10 wk
2 Jun
17 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
1 – 15 Apr
3 May
6-8 wk
27 May
14 Jun
0 wk
17 Jun
3 wk after