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Method
Rel. frost
Last spring frost (0°C) 21 Jun Frost 1 of 10 years · 20 years of data
Frost-free season 83 days 21 Jun – 12 Sep
Probability that frost is over

90% = 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)
3 – 17 May
12 Jun
5-7 wk
21 Jun
17 Jul
0 wk
22 Jun
7 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
10 – 24 May
24 Jun
4-6 wk
21 Jun
22 Jul
0 wk
22 Jun
12 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
4 Apr – 2 May
8-12 wk
27 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
3 – 17 May
7 Jun
5-7 wk
21 Jun
12 Jul
0 wk
21 Jun
2 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
30 May – 6 Jun
3-4 wk
27 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
30 May – 6 Jun
4 Jun
4-5 wk
4 Jul
2 wk after
16 Jul
4 wk after
Butter bean
Phaseolus lunatus
Season too short
2 – 9 Jul
3-4 wk
30 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
29 Mar – 26 Apr
8-12 wk
21 Jun
0 wk
21 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Greenhouse
12 Jun
12 Jun
1 wk before
12 Jun
1 wk before
Maize
Zea mays
Season too short
24 – 31 May
3-4 wk
21 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
26 May – 2 Jun
1 Jul
3-4 wk
23 Jun
22 Jul
0 wk
4 Jul
12 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
21 Jun
2 Jul
0 wk
21 Jun
22 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
3 – 17 May
7 Jun
5-7 wk
21 Jun
12 Jul
0 wk
21 Jun
2 Jul
0 wk
Potato
Solanum tuberosum
Fleece
11 – 25 May
19 May
4-6 wk
22 Jun
0 wk
22 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
3 – 17 May
17 Jun
5-7 wk
21 Jun
22 Jul
0 wk
22 Jun
12 Jul
0 wk
Pumpkin
Cucurbita pepo
Season too short
30 May – 6 Jun
3-4 wk
27 Jun
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
24 – 31 May
3-4 wk
21 Jun
0 wk
27 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
10 – 24 May
19 Jun
4-6 wk
21 Jun
17 Jul
0 wk
Lettuce
Lactuca sativa
24 – 31 May
6 Jul
3-4 wk
21 Jun
27 Jul
0 wk
22 Jun
17 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
10 – 24 May
19 Jun
4-6 wk
21 Jun
17 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Fleece
18 May – 1 Jun
28 May
2-4 wk
15 Jun
1 wk before
15 Jun
1 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Greenhouse
12 Jun
12 Jun
1 wk before
12 Jun
1 wk before
Spinach
Spinacia oleracea
24 – 31 May
21 Jul
3-4 wk
21 Jun
11 Aug
0 wk
18 Jun
1 Aug
0 wk
Sweet potato
Ipomoea batatas
16 – 30 Jul
4-6 wk
27 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
26 Apr – 10 May
6-8 wk
21 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Season too short
24 May – 7 Jun
2-4 wk
21 Jun
0 wk
4 Jul
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
10 – 24 May
19 Jun
4-6 wk
21 Jun
17 Jul
0 wk
Garden pea
Pisum sativum
24 – 31 May
21 Jun
3-4 wk
21 Jun
12 Jul
0 wk
22 Jun
2 Jul
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
16 – 30 May
4-6 wk
27 Jun
1 wk after
Lemon balm
Melissa officinalis
12 – 26 Apr
17 May
8-10 wk
21 Jun
12 Jul
0 wk
16 Jul
4 wk after
Dill
Anethum graveolens
22 Jun
22 Jul
0 wk
Wild chives
Allium schoenoprasum
26 Apr – 10 May
31 May
6-8 wk
21 Jun
12 Jul
0 wk
22 Jun
2 Jul
0 wk
Spearmint
Mentha spicata
29 Mar – 26 Apr
17 May
8-12 wk
21 Jun
12 Jul
0 wk
16 Jul
4 wk after
Coriander
Coriandrum sativum
21 Jun
11 Aug
0 wk
4 Jul
1 Aug
2 wk after
Garden sage
Salvia officinalis
14 – 28 Apr
2 May
8-10 wk
23 Jun
27 Jun
0 wk
Common thyme
Thymus vulgaris
12 – 26 Apr
7 May
8-10 wk
21 Jun
2 Jul
0 wk
Oregano
Origanum vulgare
26 Apr – 10 May
21 May
6-8 wk
21 Jun
2 Jul
0 wk
16 Jul
4 wk after
Parsley
Petroselinum crispum
26 Apr – 10 May
21 May
6-8 wk
21 Jun
2 Jul
0 wk
22 Jun
22 Jun
0 wk
Rosemary
Salvia rosmarinus
Fleece
15 Mar – 12 Apr
3 Apr
10-14 wk
21 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
30 May – 6 Jun
3-4 wk
27 Jun
1 wk after
Cornflower
Centaurea cyanus
21 Jun
12 Jul
0 wk
22 Jun
2 Jul
0 wk
Statice
Limonium sinuatum
Season too short
12 – 26 Apr
8-10 wk
21 Jun
0 wk
Sweet William
Dianthus barbatus
26 Apr – 10 May
6-8 wk
21 Jun
0 wk
1 Jul
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Season too short
26 Apr – 10 May
6-8 wk
21 Jun
0 wk
23 Jul
5 wk after
Pinnate dahlia
Dahlia × pinnata
Season too short
26 Apr – 10 May
6-8 wk
21 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Season too short
2 – 30 May
9 May
4-8 wk
27 Jun
1 wk after
27 Jun
1 wk after
Foxglove
Digitalis purpurea
12 – 26 Apr
8-10 wk
21 Jun
0 wk
4 Jul
2 wk after
Busy lizzie
Impatiens walleriana
Greenhouse
4 Apr – 2 May
12 May
8-12 wk
27 Jun
7 Jul
1 wk after
Creeping zinnia
Sanvitalia procumbens
Season too short
26 Apr – 10 May
6-8 wk
21 Jun
0 wk
Hyacinth bean
Dolichos lablab
Season too short
23 May – 6 Jun
4-6 wk
4 Jul
2 wk after
Chinese lantern
Physalis alkekengi
14 – 28 Apr
17 Apr
8-10 wk
23 Jun
0 wk
Love in a mist
Nigella damascena
21 Jun
27 Jun
0 wk
22 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Season too short
26 Apr – 10 May
6-8 wk
21 Jun
0 wk
23 Jul
5 wk after
Purple-top vervain
Verbena bonariensis
31 Mar – 28 Apr
17 Apr
8-12 wk
23 Jun
0 wk
Cardoon
Cynara cardunculus
Season too short
29 Mar – 26 Apr
8-12 wk
21 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Season too short
4 Apr – 2 May
8-12 wk
27 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Season too short
2 – 16 May
6-8 wk
27 Jun
1 wk after
Corn poppy
Papaver rhoeas
21 Jun
12 Jul
0 wk
22 Jun
2 Jul
0 wk
Snapdragon
Antirrhinum majus
29 Mar – 26 Apr
7 May
8-12 wk
21 Jun
2 Jul
0 wk
1 Jul
1 wk after
Flossflower
Ageratum houstonianum
Season too short
18 Apr – 2 May
8-10 wk
27 Jun
1 wk after
Sweet pea
Lathyrus odoratus
26 Apr – 17 May
28 May
5-8 wk
21 Jun
2 Jul
0 wk
Stock
Matthiola incana
26 Apr – 10 May
31 May
6-8 wk
21 Jun
12 Jul
0 wk
4 Jul
2 wk after
Wormwood
Artemisia absinthium
26 Apr – 10 May
1 May
6-8 wk
21 Jun
0 wk
4 Jul
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
16 – 30 May
4-6 wk
27 Jun
1 wk after
Garden pansy
Viola × wittrockiana
12 – 26 Apr
17 May
8-10 wk
21 Jun
12 Jul
0 wk
1 Jul
2 Jul
1 wk after
Petunia
Petunia
Season too short
29 Mar – 26 Apr
1 Apr
8-12 wk
21 Jun
0 wk
Sweet Scabious
Scabiosa atropurpurea
28 Apr – 12 May
1 May
6-8 wk
23 Jun
0 wk
3 Aug
6 wk after
Common zinnia
Zinnia elegans
Season too short
10 – 24 May
4-6 wk
21 Jun
0 wk
Common morning glory
Ipomoea purpurea
Season too short
23 May – 6 Jun
3-5 wk
27 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Season too short
10 – 24 May
4-6 wk
21 Jun
0 wk
4 Jul
2 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
11 Apr – 9 May
8-12 wk
4 Jul
2 wk after
Bee balm
Monarda didyma
29 Mar – 26 Apr
17 Apr
8-12 wk
21 Jun
0 wk
16 Jul
4 wk after
Yarrow
Achillea millefolium
26 Apr – 10 May
6-8 wk
21 Jun
0 wk
4 Jul
2 wk after
Safflower
Carthamus tinctorius
21 Jun
0 wk
22 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
26 Apr – 10 May
21 May
6-8 wk
21 Jun
2 Jul
0 wk
5 Jun
22 Jun
2 wk before
Bishop's flower
Ammi majus
10 – 24 May
4 Jun
4-6 wk
21 Jun
2 Jul
0 wk
4 Jul
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
4 – 18 Apr
10-12 wk
27 Jun
1 wk after
Sunflower
Helianthus annuus
Fleece
30 May – 6 Jun
11 Jun
3-4 wk
27 Jun
2 Jul
1 wk after
4 Jul
2 wk after
China aster
Callistephus chinensis
9 – 23 May
18 May
6-8 wk
4 Jul
2 wk after
3 Aug
6 wk after
Annual phlox
Phlox drummondii
Season too short
26 Apr – 10 May
6-8 wk
21 Jun
0 wk
4 Jul
2 wk after
Hollyhock
Alcea rosea
26 Apr – 10 May
6-8 wk
21 Jun
0 wk
4 Jul
2 wk after
Alpine delphinium
Delphinium elatum
29 Mar – 26 Apr
17 Apr
8-12 wk
21 Jun
0 wk
16 Jul
4 wk after
African marigold
Tagetes erecta
Season too short
26 Apr – 10 May
6-8 wk
21 Jun
0 wk
Black-eyed Susan
Rudbeckia hirta
28 Apr – 12 May
8 May
6-8 wk
23 Jun
0 wk
3 Aug
6 wk after
Wood sage
Salvia nemorosa
12 – 26 Apr
8-10 wk
21 Jun
0 wk
16 Jul
4 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
18 Apr – 16 May
6-10 wk
27 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
21 Jun
12 Jul
0 wk
22 Jun
2 Jul
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
18 Apr – 2 May
7 May
8-10 wk
27 Jun
2 Jul
1 wk after
Water forget-me-not
Myosotis scorpioides
26 Apr – 10 May
1 May
6-8 wk
21 Jun
0 wk
4 Jul
2 wk after