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Method
Rel. frost
Last spring frost (0°C) 14 Jun Normal year · 20 years of data
Frost-free season 73 days 14 Jun – 26 Aug
Probability that frost is over

50% = 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)
26 Apr – 10 May
15 Jun
5-7 wk
14 Jun
20 Jul
0 wk
18 Jun
10 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
3 – 17 May
27 Jun
4-6 wk
14 Jun
25 Jul
0 wk
18 Jun
15 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
28 Mar – 25 Apr
8-12 wk
20 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
26 Apr – 10 May
10 Jun
5-7 wk
14 Jun
15 Jul
0 wk
14 Jun
5 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
23 – 30 May
3-4 wk
20 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
23 – 30 May
27 May
4-5 wk
27 Jun
2 wk after
19 Jul
5 wk after
Butter bean
Phaseolus lunatus
Season too short
25 Jun – 2 Jul
3-4 wk
23 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
22 Mar – 19 Apr
28 Mar
8-12 wk
14 Jun
0 wk
14 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
18 Jun
1 wk after
18 Jun
1 wk after
Maize
Zea mays
Greenhouse
17 – 24 May
3-4 wk
14 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
19 – 26 May
23 Jun
3-4 wk
16 Jun
14 Jul
0 wk
5 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
14 Jun
5 Jul
0 wk
14 Jun
25 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
26 Apr – 10 May
10 Jun
5-7 wk
14 Jun
15 Jul
0 wk
14 Jun
5 Jul
0 wk
Potato
Solanum tuberosum
Fleece
7 – 21 May
17 May
4-6 wk
18 Jun
1 wk after
18 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
26 Apr – 10 May
20 Jun
5-7 wk
14 Jun
25 Jul
0 wk
18 Jun
15 Jul
1 wk after
Pumpkin
Cucurbita pepo
Fleece
30 May – 6 Jun
3-4 wk
27 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
17 – 24 May
3-4 wk
14 Jun
0 wk
24 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
3 – 17 May
22 Jun
4-6 wk
14 Jun
20 Jul
0 wk
Lettuce
Lactuca sativa
17 – 24 May
9 Jul
3-4 wk
14 Jun
30 Jul
0 wk
18 Jun
20 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
3 – 17 May
22 Jun
4-6 wk
14 Jun
20 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
17 – 31 May
2-4 wk
14 Jun
0 wk
14 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
18 Jun
1 wk after
18 Jun
1 wk after
Spinach
Spinacia oleracea
17 – 24 May
24 Jul
3-4 wk
14 Jun
14 Aug
0 wk
10 Jun
4 Aug
1 wk before
Sweet potato
Ipomoea batatas
16 – 30 Jul
4-6 wk
27 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
19 Apr – 3 May
19 Apr
6-8 wk
14 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
23 May – 6 Jun
27 May
2-4 wk
20 Jun
1 wk after
19 Jul
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
3 – 17 May
22 Jun
4-6 wk
14 Jun
20 Jul
0 wk
Garden pea
Pisum sativum
17 – 24 May
24 Jun
3-4 wk
14 Jun
15 Jul
0 wk
18 Jun
5 Jul
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
Greenhouse
9 – 23 May
24 May
4-6 wk
20 Jun
21 Jun
1 wk after
Lemon balm
Melissa officinalis
5 – 19 Apr
20 May
8-10 wk
14 Jun
15 Jul
0 wk
19 Jul
5 wk after
Dill
Anethum graveolens
18 Jun
14 Jul
1 wk after
Wild chives
Allium schoenoprasum
19 Apr – 3 May
3 Jun
6-8 wk
14 Jun
15 Jul
0 wk
18 Jun
5 Jul
1 wk after
Spearmint
Mentha spicata
22 Mar – 19 Apr
20 May
8-12 wk
14 Jun
15 Jul
0 wk
19 Jul
5 wk after
Coriander
Coriandrum sativum
14 Jun
3 Aug
0 wk
5 Jul
24 Jul
3 wk after
Garden sage
Salvia officinalis
7 – 21 Apr
5 May
8-10 wk
16 Jun
30 Jun
0 wk
Common thyme
Thymus vulgaris
5 – 19 Apr
10 May
8-10 wk
14 Jun
5 Jul
0 wk
Oregano
Origanum vulgare
19 Apr – 3 May
24 May
6-8 wk
14 Jun
5 Jul
0 wk
19 Jul
5 wk after
Parsley
Petroselinum crispum
19 Apr – 3 May
24 May
6-8 wk
14 Jun
5 Jul
0 wk
18 Jun
25 Jun
1 wk after
Rosemary
Salvia rosmarinus
Fleece
8 Mar – 5 Apr
29 Mar
10-14 wk
14 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
Greenhouse
23 – 30 May
31 May
3-4 wk
20 Jun
21 Jun
1 wk after
Cornflower
Centaurea cyanus
14 Jun
15 Jul
0 wk
18 Jun
5 Jul
1 wk after
Statice
Limonium sinuatum
Fleece
11 – 25 Apr
27 Apr
8-10 wk
20 Jun
22 Jun
1 wk after
Sweet William
Dianthus barbatus
19 Apr – 3 May
6-8 wk
14 Jun
0 wk
30 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
25 Apr – 9 May
11 May
6-8 wk
20 Jun
22 Jun
1 wk after
12 Aug
8 wk after
Pinnate dahlia
Dahlia × pinnata
30 Apr – 14 May
30 Apr
6-8 wk
25 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
10 May – 7 Jun
28 May
4-8 wk
5 Jul
3 wk after
5 Jul
3 wk after
Foxglove
Digitalis purpurea
5 – 19 Apr
8-10 wk
14 Jun
0 wk
5 Jul
3 wk after
Busy lizzie
Impatiens walleriana
23 Apr – 21 May
21 May
8-12 wk
16 Jul
16 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
2 – 16 May
7 May
6-8 wk
27 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
16 – 30 May
4-6 wk
27 Jun
2 wk after
Chinese lantern
Physalis alkekengi
7 – 21 Apr
9 Apr
8-10 wk
16 Jun
0 wk
Love in a mist
Nigella damascena
14 Jun
30 Jun
0 wk
18 Jun
20 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Fleece
25 Apr – 9 May
1 May
6-8 wk
20 Jun
1 wk after
12 Aug
8 wk after
Purple-top vervain
Verbena bonariensis
24 Mar – 21 Apr
9 Apr
8-12 wk
16 Jun
0 wk
Cardoon
Cynara cardunculus
Season too short
22 Mar – 19 Apr
8-12 wk
14 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Greenhouse
28 Mar – 25 Apr
16 Apr
8-12 wk
20 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
25 Apr – 9 May
30 Apr
6-8 wk
20 Jun
1 wk after
Corn poppy
Papaver rhoeas
14 Jun
15 Jul
0 wk
18 Jun
5 Jul
1 wk after
Snapdragon
Antirrhinum majus
22 Mar – 19 Apr
10 May
8-12 wk
14 Jun
5 Jul
0 wk
30 Jun
2 wk after
Flossflower
Ageratum houstonianum
Fleece
18 Apr – 2 May
7 May
8-10 wk
27 Jun
2 Jul
2 wk after
Sweet pea
Lathyrus odoratus
19 Apr – 10 May
31 May
5-8 wk
14 Jun
5 Jul
0 wk
Stock
Matthiola incana
19 Apr – 3 May
3 Jun
6-8 wk
14 Jun
15 Jul
0 wk
5 Jul
5 Jul
3 wk after
Wormwood
Artemisia absinthium
19 Apr – 3 May
4 May
6-8 wk
14 Jun
15 Jun
0 wk
5 Jul
3 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
9 – 23 May
9 May
4-6 wk
20 Jun
1 wk after
Garden pansy
Viola × wittrockiana
5 – 19 Apr
20 May
8-10 wk
14 Jun
15 Jul
0 wk
30 Jun
5 Jul
2 wk after
Petunia
Petunia
Fleece
28 Mar – 25 Apr
27 Apr
8-12 wk
20 Jun
22 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
21 Apr – 5 May
23 Apr
6-8 wk
16 Jun
0 wk
2 Aug
7 wk after
Common zinnia
Zinnia elegans
Fleece
9 – 23 May
24 May
4-6 wk
20 Jun
21 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
16 – 30 May
31 May
3-5 wk
20 Jun
21 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
9 – 23 May
28 May
4-6 wk
20 Jun
25 Jun
1 wk after
19 Jul
5 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
4 Apr – 2 May
16 May
8-12 wk
27 Jun
11 Jul
2 wk after
Bee balm
Monarda didyma
22 Mar – 19 Apr
20 Apr
8-12 wk
14 Jun
15 Jun
0 wk
19 Jul
5 wk after
Yarrow
Achillea millefolium
19 Apr – 3 May
6-8 wk
14 Jun
0 wk
5 Jul
3 wk after
Safflower
Carthamus tinctorius
14 Jun
15 Jun
0 wk
18 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
19 Apr – 3 May
24 May
6-8 wk
14 Jun
5 Jul
0 wk
27 May
25 Jun
3 wk before
Bishop's flower
Ammi majus
3 – 17 May
7 Jun
4-6 wk
14 Jun
5 Jul
0 wk
5 Jul
3 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
28 Mar – 11 Apr
10-12 wk
20 Jun
1 wk after
Sunflower
Helianthus annuus
30 May – 6 Jun
3-4 wk
27 Jun
2 wk after
19 Jul
5 wk after
China aster
Callistephus chinensis
2 – 16 May
13 May
6-8 wk
27 Jun
2 wk after
2 Aug
7 wk after
Annual phlox
Phlox drummondii
25 Apr – 9 May
7 May
6-8 wk
20 Jun
1 wk after
2 Aug
7 wk after
Hollyhock
Alcea rosea
19 Apr – 3 May
6-8 wk
14 Jun
0 wk
5 Jul
3 wk after
Alpine delphinium
Delphinium elatum
22 Mar – 19 Apr
20 Apr
8-12 wk
14 Jun
15 Jun
0 wk
19 Jul
5 wk after
African marigold
Tagetes erecta
2 – 16 May
7 May
6-8 wk
27 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
21 Apr – 5 May
3 May
6-8 wk
16 Jun
0 wk
2 Aug
7 wk after
Wood sage
Salvia nemorosa
5 – 19 Apr
10 Apr
8-10 wk
14 Jun
0 wk
19 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
11 Apr – 9 May
10 May
6-10 wk
20 Jun
21 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
14 Jun
7 Jul
0 wk
18 Jun
27 Jun
1 wk after
Painted tongue
Salpiglossis sinuata
Fleece
11 – 25 Apr
29 Apr
8-10 wk
20 Jun
24 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
19 Apr – 3 May
4 May
6-8 wk
14 Jun
15 Jun
0 wk
5 Jul
3 wk after