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Rel. frost
Last spring frost (0°C) 19 May Frost 9 of 10 years · 20 years of data
Frost-free season 83 days 19 May – 10 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)
31 Mar – 14 Apr
9 Jun
5-7 wk
19 May
14 Jul
0 wk
20 May
4 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
7 – 21 Apr
21 Jun
4-6 wk
19 May
19 Jul
0 wk
20 May
9 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
7 Mar – 4 Apr
8-12 wk
30 May
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
31 Mar – 14 Apr
5 Jun
5-7 wk
19 May
10 Jul
0 wk
19 May
30 Jun
0 wk
Garden cucumber
Cucumis sativus
Season too short
2 – 9 May
3-4 wk
30 May
2 wk after
Florence Fennel
Foeniculum vulgare
Greenhouse
25 Apr – 2 May
24 May
4-5 wk
30 May
21 Jun
2 wk after
1 Jun
11 Jun
2 wk after
Butter bean
Phaseolus lunatus
Season too short
1 – 8 Jun
3-4 wk
29 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Greenhouse
24 Feb – 24 Mar
13 Mar
8-12 wk
19 May
0 wk
19 May
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Fleece
16 May
22 May
0 wk
16 May
0 wk
Maize
Zea mays
Season too short
25 Apr – 2 May
3-4 wk
23 May
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
27 Apr – 4 May
7 Jun
3-4 wk
25 May
28 Jun
1 wk after
1 Jun
18 Jun
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
19 May
21 Jun
0 wk
19 May
11 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
31 Mar – 14 Apr
5 Jun
5-7 wk
19 May
10 Jul
0 wk
19 May
30 Jun
0 wk
Potato
Solanum tuberosum
17 Apr – 1 May
19 Apr
4-6 wk
29 May
1 wk after
29 May
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
31 Mar – 14 Apr
6 Jun
5-7 wk
19 May
11 Jul
0 wk
20 May
1 Jul
0 wk
Pumpkin
Cucurbita pepo
Season too short
2 – 9 May
3-4 wk
30 May
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
27 Apr – 4 May
3-4 wk
25 May
1 wk after
1 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
7 – 21 Apr
17 Jun
4-6 wk
19 May
15 Jul
0 wk
Lettuce
Lactuca sativa
21 – 28 Apr
25 Jun
3-4 wk
19 May
16 Jul
0 wk
20 May
6 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
7 – 21 Apr
17 Jun
4-6 wk
19 May
15 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
21 Apr – 5 May
1 May
2-4 wk
19 May
0 wk
19 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Fleece
16 May
22 May
0 wk
16 May
0 wk
Spinach
Spinacia oleracea
21 – 28 Apr
15 Jul
3-4 wk
19 May
5 Aug
0 wk
16 May
26 Jul
0 wk
Sweet potato
Ipomoea batatas
13 – 27 Jun
4-6 wk
25 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
28 Mar – 11 Apr
6-8 wk
23 May
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Season too short
25 Apr – 9 May
2-4 wk
23 May
1 wk after
1 Jun
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
7 – 21 Apr
17 Jun
4-6 wk
19 May
15 Jul
0 wk
Garden pea
Pisum sativum
21 – 28 Apr
10 Jun
3-4 wk
19 May
1 Jul
0 wk
20 May
21 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
18 Apr – 2 May
4-6 wk
30 May
2 wk after
Lemon balm
Melissa officinalis
10 – 24 Mar
6 May
8-10 wk
19 May
1 Jul
0 wk
13 Jun
21 Jun
4 wk after
Dill
Anethum graveolens
20 May
28 Jun
0 wk
Wild chives
Allium schoenoprasum
24 Mar – 7 Apr
29 May
6-8 wk
19 May
10 Jul
0 wk
20 May
30 Jun
0 wk
Spearmint
Mentha spicata
24 Feb – 24 Mar
14 May
8-12 wk
19 May
9 Jul
0 wk
13 Jun
29 Jun
4 wk after
Coriander
Coriandrum sativum
19 May
18 Jul
0 wk
1 Jun
8 Jul
2 wk after
Garden sage
Salvia officinalis
16 – 30 Mar
30 Apr
8-10 wk
25 May
25 Jun
1 wk after
Common thyme
Thymus vulgaris
10 – 24 Mar
5 May
8-10 wk
19 May
30 Jun
0 wk
Oregano
Origanum vulgare
24 Mar – 7 Apr
18 May
6-8 wk
19 May
29 Jun
0 wk
13 Jun
19 Jun
4 wk after
Parsley
Petroselinum crispum
24 Mar – 7 Apr
18 May
6-8 wk
19 May
29 Jun
0 wk
20 May
19 Jun
0 wk
Rosemary
Salvia rosmarinus
Fleece
10 Feb – 10 Mar
11 Mar
10-14 wk
19 May
20 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
2 – 9 May
3-4 wk
30 May
2 wk after
Cornflower
Centaurea cyanus
19 May
9 Jul
0 wk
20 May
29 Jun
0 wk
Statice
Limonium sinuatum
Season too short
14 – 28 Mar
8-10 wk
23 May
1 wk after
Sweet William
Dianthus barbatus
24 Mar – 7 Apr
6-8 wk
19 May
0 wk
29 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Season too short
28 Mar – 11 Apr
6-8 wk
23 May
1 wk after
20 Jun
5 wk after
Pinnate dahlia
Dahlia × pinnata
Season too short
24 Mar – 7 Apr
6-8 wk
19 May
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Season too short
30 Mar – 27 Apr
6 Apr
4-8 wk
25 May
1 wk after
25 May
1 wk after
Foxglove
Digitalis purpurea
10 – 24 Mar
8-10 wk
19 May
0 wk
1 Jun
2 wk after
Busy lizzie
Impatiens walleriana
Season too short
7 Mar – 4 Apr
2 Apr
8-12 wk
30 May
2 wk after
Creeping zinnia
Sanvitalia procumbens
Season too short
28 Mar – 11 Apr
6-8 wk
23 May
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
27 Apr – 11 May
4-6 wk
8 Jun
3 wk after
Chinese lantern
Physalis alkekengi
16 – 30 Mar
24 Mar
8-10 wk
25 May
1 wk after
Love in a mist
Nigella damascena
19 May
16 Jun
0 wk
20 May
6 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Season too short
28 Mar – 11 Apr
6-8 wk
23 May
1 wk after
20 Jun
5 wk after
Purple-top vervain
Verbena bonariensis
2 – 30 Mar
24 Mar
8-12 wk
25 May
1 wk after
Cardoon
Cynara cardunculus
Season too short
28 Feb – 28 Mar
12 Mar
8-12 wk
23 May
1 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
7 Mar – 4 Apr
8-12 wk
30 May
2 wk after
Globe amaranth
Gomphrena globosa
Season too short
4 – 18 Apr
6-8 wk
30 May
2 wk after
Corn poppy
Papaver rhoeas
19 May
1 Jul
0 wk
20 May
21 Jun
0 wk
Snapdragon
Antirrhinum majus
24 Feb – 24 Mar
26 Apr
8-12 wk
19 May
21 Jun
0 wk
29 May
11 Jun
1 wk after
Flossflower
Ageratum houstonianum
Season too short
21 Mar – 4 Apr
8-10 wk
30 May
2 wk after
Sweet pea
Lathyrus odoratus
24 Mar – 14 Apr
25 May
5-8 wk
19 May
29 Jun
0 wk
Stock
Matthiola incana
24 Mar – 7 Apr
20 May
6-8 wk
19 May
1 Jul
0 wk
1 Jun
21 Jun
2 wk after
Wormwood
Artemisia absinthium
24 Mar – 7 Apr
29 Apr
6-8 wk
19 May
10 Jun
0 wk
1 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
18 Apr – 2 May
4-6 wk
30 May
2 wk after
Garden pansy
Viola × wittrockiana
10 – 24 Mar
15 May
8-10 wk
19 May
10 Jul
0 wk
29 May
30 Jun
1 wk after
Petunia
Petunia
Season too short
28 Feb – 28 Mar
8-12 wk
23 May
1 wk after
Sweet Scabious
Scabiosa atropurpurea
30 Mar – 13 Apr
7 Apr
6-8 wk
25 May
1 wk after
1 Jul
6 wk after
Common zinnia
Zinnia elegans
Season too short
11 – 25 Apr
4-6 wk
23 May
1 wk after
Common morning glory
Ipomoea purpurea
Season too short
25 Apr – 9 May
3-5 wk
30 May
2 wk after
Garden cosmos
Cosmos bipinnatus
Season too short
11 – 25 Apr
4-6 wk
23 May
1 wk after
1 Jun
2 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
16 Mar – 13 Apr
8-12 wk
8 Jun
3 wk after
Bee balm
Monarda didyma
24 Feb – 24 Mar
6 Apr
8-12 wk
19 May
1 Jun
0 wk
13 Jun
4 wk after
Yarrow
Achillea millefolium
24 Mar – 7 Apr
30 Mar
6-8 wk
19 May
0 wk
1 Jun
2 wk after
Safflower
Carthamus tinctorius
19 May
6 Jun
0 wk
20 May
27 May
0 wk
Iceland poppy
Papaver nudicaule
Season too short
24 Mar – 7 Apr
19 May
6-8 wk
19 May
30 Jun
0 wk
3 May
20 Jun
2 wk before
Bishop's flower
Ammi majus
7 – 21 Apr
24 May
4-6 wk
19 May
21 Jun
0 wk
1 Jun
11 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
7 – 21 Mar
10-12 wk
30 May
2 wk after
Sunflower
Helianthus annuus
Fleece
2 – 9 May
19 May
3-4 wk
30 May
9 Jun
2 wk after
1 Jun
2 wk after
China aster
Callistephus chinensis
Fleece
4 – 18 Apr
8 May
6-8 wk
30 May
19 Jun
2 wk after
13 Jun
4 wk after
Annual phlox
Phlox drummondii
Season too short
24 Mar – 7 Apr
6-8 wk
19 May
0 wk
1 Jun
2 wk after
Hollyhock
Alcea rosea
24 Mar – 7 Apr
6-8 wk
19 May
0 wk
1 Jun
2 wk after
Alpine delphinium
Delphinium elatum
24 Feb – 24 Mar
6 Apr
8-12 wk
19 May
1 Jun
0 wk
13 Jun
4 wk after
African marigold
Tagetes erecta
Season too short
28 Mar – 11 Apr
6-8 wk
23 May
1 wk after
Black-eyed Susan
Rudbeckia hirta
30 Mar – 13 Apr
14 Apr
6-8 wk
25 May
26 May
1 wk after
1 Jul
6 wk after
Wood sage
Salvia nemorosa
10 – 24 Mar
27 Mar
8-10 wk
19 May
22 May
0 wk
13 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
21 Mar – 18 Apr
6-10 wk
30 May
2 wk after
California goldenpoppy
Eschscholzia californica
19 May
19 Jun
0 wk
20 May
9 Jun
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
21 Mar – 4 Apr
13 Apr
8-10 wk
30 May
8 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
24 Mar – 7 Apr
29 Apr
6-8 wk
19 May
10 Jun
0 wk
1 Jun
2 wk after