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Method
Rel. frost
Last spring frost (0°C) 1 Jun Frost 9 of 10 years · 20 years of data
Frost-free season 82 days 1 Jun – 22 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)
13 – 27 Apr
14 Jun
5-7 wk
1 Jun
19 Jul
0 wk
5 Jun
9 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
20 Apr – 4 May
26 Jun
4-6 wk
1 Jun
24 Jul
0 wk
5 Jun
14 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
15 Mar – 12 Apr
8-12 wk
7 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
13 – 27 Apr
9 Jun
5-7 wk
1 Jun
14 Jul
0 wk
1 Jun
4 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
10 – 17 May
3-4 wk
7 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
10 – 17 May
21 May
4-5 wk
14 Jun
18 Jun
2 wk after
6 Jul
5 wk after
Butter bean
Phaseolus lunatus
Season too short
12 – 19 Jun
3-4 wk
10 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
9 Mar – 6 Apr
16 Mar
8-12 wk
1 Jun
0 wk
1 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
5 Jun
1 wk after
5 Jun
1 wk after
Maize
Zea mays
Season too short
4 – 11 May
3-4 wk
1 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
6 – 13 May
17 Jun
3-4 wk
3 Jun
8 Jul
0 wk
22 Jun
28 Jun
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
1 Jun
27 Jun
0 wk
1 Jun
17 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
13 – 27 Apr
9 Jun
5-7 wk
1 Jun
14 Jul
0 wk
1 Jun
4 Jul
0 wk
Potato
Solanum tuberosum
Fleece
24 Apr – 8 May
11 May
4-6 wk
5 Jun
8 Jun
1 wk after
5 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
13 – 27 Apr
12 Jun
5-7 wk
1 Jun
17 Jul
0 wk
5 Jun
7 Jul
1 wk after
Pumpkin
Cucurbita pepo
Season too short
10 – 17 May
3-4 wk
7 Jun
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
4 – 11 May
10 May
3-4 wk
1 Jun
0 wk
11 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
20 Apr – 4 May
21 Jun
4-6 wk
1 Jun
19 Jul
0 wk
Lettuce
Lactuca sativa
4 – 11 May
1 Jul
3-4 wk
1 Jun
22 Jul
0 wk
5 Jun
12 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
20 Apr – 4 May
21 Jun
4-6 wk
1 Jun
19 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
4 – 18 May
6 May
2-4 wk
1 Jun
0 wk
1 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
5 Jun
1 wk after
5 Jun
1 wk after
Spinach
Spinacia oleracea
4 – 11 May
23 Jul
3-4 wk
1 Jun
13 Aug
0 wk
28 May
3 Aug
1 wk before
Sweet potato
Ipomoea batatas
3 – 17 Jul
4-6 wk
14 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Season too short
6 – 20 Apr
6-8 wk
1 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Season too short
4 – 18 May
2-4 wk
1 Jun
0 wk
22 Jun
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
20 Apr – 4 May
21 Jun
4-6 wk
1 Jun
19 Jul
0 wk
Garden pea
Pisum sativum
4 – 11 May
16 Jun
3-4 wk
1 Jun
7 Jul
0 wk
5 Jun
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
26 Apr – 10 May
4-6 wk
7 Jun
1 wk after
Lemon balm
Melissa officinalis
23 Mar – 6 Apr
12 May
8-10 wk
1 Jun
7 Jul
0 wk
6 Jul
5 wk after
Dill
Anethum graveolens
5 Jun
8 Jul
1 wk after
Wild chives
Allium schoenoprasum
6 – 20 Apr
2 Jun
6-8 wk
1 Jun
14 Jul
0 wk
5 Jun
4 Jul
1 wk after
Spearmint
Mentha spicata
9 Mar – 6 Apr
19 May
8-12 wk
1 Jun
14 Jul
0 wk
6 Jul
5 wk after
Coriander
Coriandrum sativum
1 Jun
28 Jul
0 wk
22 Jun
18 Jul
3 wk after
Garden sage
Salvia officinalis
25 Mar – 8 Apr
4 May
8-10 wk
3 Jun
29 Jun
0 wk
Common thyme
Thymus vulgaris
23 Mar – 6 Apr
9 May
8-10 wk
1 Jun
4 Jul
0 wk
Oregano
Origanum vulgare
6 – 20 Apr
23 May
6-8 wk
1 Jun
4 Jul
0 wk
6 Jul
5 wk after
Parsley
Petroselinum crispum
6 – 20 Apr
23 May
6-8 wk
1 Jun
4 Jul
0 wk
5 Jun
24 Jun
1 wk after
Rosemary
Salvia rosmarinus
Fleece
23 Feb – 23 Mar
25 Mar
10-14 wk
1 Jun
3 Jun
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
10 – 17 May
3-4 wk
7 Jun
1 wk after
Cornflower
Centaurea cyanus
1 Jun
14 Jul
0 wk
5 Jun
4 Jul
1 wk after
Statice
Limonium sinuatum
Season too short
23 Mar – 6 Apr
8-10 wk
1 Jun
0 wk
Sweet William
Dianthus barbatus
6 – 20 Apr
6-8 wk
1 Jun
0 wk
17 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
Season too short
6 – 20 Apr
6-8 wk
1 Jun
0 wk
12 Jul
6 wk after
Pinnate dahlia
Dahlia × pinnata
Season too short
6 – 20 Apr
6-8 wk
1 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Season too short
16 Apr – 14 May
18 Apr
4-8 wk
11 Jun
1 wk after
11 Jun
1 wk after
Foxglove
Digitalis purpurea
23 Mar – 6 Apr
8-10 wk
1 Jun
0 wk
22 Jun
3 wk after
Busy lizzie
Impatiens walleriana
Season too short
15 Mar – 12 Apr
26 Mar
8-12 wk
7 Jun
1 wk after
Creeping zinnia
Sanvitalia procumbens
Season too short
6 – 20 Apr
6-8 wk
1 Jun
0 wk
Hyacinth bean
Dolichos lablab
Season too short
3 – 17 May
4-6 wk
14 Jun
2 wk after
Chinese lantern
Physalis alkekengi
Fleece
23 Mar – 6 Apr
12 Apr
8-10 wk
1 Jun
7 Jun
0 wk
Love in a mist
Nigella damascena
1 Jun
22 Jun
0 wk
5 Jun
12 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Season too short
6 – 20 Apr
6-8 wk
1 Jun
0 wk
12 Jul
6 wk after
Purple-top vervain
Verbena bonariensis
Fleece
9 Mar – 6 Apr
12 Apr
8-12 wk
1 Jun
7 Jun
0 wk
Cardoon
Cynara cardunculus
Season too short
9 Mar – 6 Apr
20 Mar
8-12 wk
1 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Season too short
15 Mar – 12 Apr
8-12 wk
7 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Season too short
12 – 26 Apr
6-8 wk
7 Jun
1 wk after
Corn poppy
Papaver rhoeas
1 Jun
7 Jul
0 wk
5 Jun
27 Jun
1 wk after
Snapdragon
Antirrhinum majus
9 Mar – 6 Apr
2 May
8-12 wk
1 Jun
27 Jun
0 wk
17 Jun
17 Jun
2 wk after
Flossflower
Ageratum houstonianum
Season too short
29 Mar – 12 Apr
8-10 wk
7 Jun
1 wk after
Sweet pea
Lathyrus odoratus
6 – 27 Apr
30 May
5-8 wk
1 Jun
4 Jul
0 wk
Stock
Matthiola incana
6 – 20 Apr
26 May
6-8 wk
1 Jun
7 Jul
0 wk
22 Jun
27 Jun
3 wk after
Wormwood
Artemisia absinthium
6 – 20 Apr
3 May
6-8 wk
1 Jun
14 Jun
0 wk
22 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
26 Apr – 10 May
4-6 wk
7 Jun
1 wk after
Garden pansy
Viola × wittrockiana
23 Mar – 6 Apr
19 May
8-10 wk
1 Jun
14 Jul
0 wk
17 Jun
4 Jul
2 wk after
Petunia
Petunia
Season too short
9 Mar – 6 Apr
8-12 wk
1 Jun
0 wk
Sweet Scabious
Scabiosa atropurpurea
Fleece
6 – 20 Apr
26 Apr
6-8 wk
1 Jun
7 Jun
0 wk
6 Jul
5 wk after
Common zinnia
Zinnia elegans
Season too short
20 Apr – 4 May
4-6 wk
1 Jun
0 wk
Common morning glory
Ipomoea purpurea
Season too short
3 – 17 May
3-5 wk
7 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Season too short
20 Apr – 4 May
4-6 wk
1 Jun
0 wk
22 Jun
3 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
22 Mar – 19 Apr
8-12 wk
14 Jun
2 wk after
Bee balm
Monarda didyma
9 Mar – 6 Apr
12 Apr
8-12 wk
1 Jun
7 Jun
0 wk
6 Jul
5 wk after
Yarrow
Achillea millefolium
6 – 20 Apr
6-8 wk
1 Jun
0 wk
22 Jun
3 wk after
Safflower
Carthamus tinctorius
1 Jun
14 Jun
0 wk
5 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
6 – 20 Apr
23 May
6-8 wk
1 Jun
4 Jul
0 wk
14 May
24 Jun
3 wk before
Bishop's flower
Ammi majus
20 Apr – 4 May
30 May
4-6 wk
1 Jun
27 Jun
0 wk
22 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Season too short
15 – 29 Mar
10-12 wk
7 Jun
1 wk after
Sunflower
Helianthus annuus
Fleece
10 – 17 May
2 Jun
3-4 wk
7 Jun
23 Jun
1 wk after
22 Jun
3 wk after
China aster
Callistephus chinensis
19 Apr – 3 May
9 May
6-8 wk
14 Jun
20 Jun
2 wk after
20 Jul
7 wk after
Annual phlox
Phlox drummondii
Season too short
6 – 20 Apr
6-8 wk
1 Jun
0 wk
22 Jun
3 wk after
Hollyhock
Alcea rosea
6 – 20 Apr
6-8 wk
1 Jun
0 wk
22 Jun
3 wk after
Alpine delphinium
Delphinium elatum
9 Mar – 6 Apr
12 Apr
8-12 wk
1 Jun
7 Jun
0 wk
6 Jul
5 wk after
African marigold
Tagetes erecta
Season too short
6 – 20 Apr
6-8 wk
1 Jun
0 wk
Black-eyed Susan
Rudbeckia hirta
8 – 22 Apr
29 Apr
6-8 wk
3 Jun
10 Jun
0 wk
20 Jul
7 wk after
Wood sage
Salvia nemorosa
23 Mar – 6 Apr
2 Apr
8-10 wk
1 Jun
0 wk
6 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
29 Mar – 26 Apr
6-10 wk
7 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
1 Jun
3 Jul
0 wk
5 Jun
23 Jun
1 wk after
Painted tongue
Salpiglossis sinuata
Fleece
29 Mar – 12 Apr
23 Apr
8-10 wk
7 Jun
18 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
6 – 20 Apr
3 May
6-8 wk
1 Jun
14 Jun
0 wk
22 Jun
3 wk after