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Method
Rel. frost
Last spring frost (0°C) 4 Jun Frost 9 of 10 years · 20 years of data
Frost-free season 81 days 4 Jun – 24 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)
16 – 30 Apr
15 Jun
5-7 wk
4 Jun
20 Jul
0 wk
8 Jun
10 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
23 Apr – 7 May
27 Jun
4-6 wk
4 Jun
25 Jul
0 wk
8 Jun
15 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
18 Mar – 15 Apr
8-12 wk
10 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
16 – 30 Apr
10 Jun
5-7 wk
4 Jun
15 Jul
0 wk
4 Jun
5 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
13 – 20 May
3-4 wk
10 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Greenhouse
6 – 13 May
29 May
4-5 wk
10 Jun
26 Jun
1 wk after
25 Jun
3 wk after
Butter bean
Phaseolus lunatus
Season too short
15 – 22 Jun
3-4 wk
13 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
12 Mar – 9 Apr
15 Mar
8-12 wk
4 Jun
0 wk
4 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Fleece
31 May
1 wk before
31 May
1 wk before
Maize
Zea mays
Season too short
7 – 14 May
3-4 wk
4 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
9 – 16 May
17 Jun
3-4 wk
6 Jun
8 Jul
0 wk
25 Jun
28 Jun
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
4 Jun
26 Jun
0 wk
4 Jun
16 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
16 – 30 Apr
10 Jun
5-7 wk
4 Jun
15 Jul
0 wk
4 Jun
5 Jul
0 wk
Potato
Solanum tuberosum
Fleece
27 Apr – 11 May
3 May
4-6 wk
8 Jun
1 wk after
8 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
16 – 30 Apr
11 Jun
5-7 wk
4 Jun
16 Jul
0 wk
8 Jun
6 Jul
1 wk after
Pumpkin
Cucurbita pepo
Season too short
13 – 20 May
3-4 wk
10 Jun
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
7 – 14 May
3-4 wk
4 Jun
0 wk
14 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
23 Apr – 7 May
22 Jun
4-6 wk
4 Jun
20 Jul
0 wk
Lettuce
Lactuca sativa
7 – 14 May
30 Jun
3-4 wk
4 Jun
21 Jul
0 wk
8 Jun
11 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
23 Apr – 7 May
22 Jun
4-6 wk
4 Jun
20 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
7 – 21 May
2-4 wk
4 Jun
0 wk
4 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Fleece
31 May
1 wk before
31 May
1 wk before
Spinach
Spinacia oleracea
7 – 14 May
24 Jul
3-4 wk
4 Jun
14 Aug
0 wk
31 May
4 Aug
1 wk before
Sweet potato
Ipomoea batatas
6 – 20 Jul
4-6 wk
17 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Season too short
9 – 23 Apr
6-8 wk
4 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Season too short
7 – 21 May
2-4 wk
4 Jun
0 wk
25 Jun
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
23 Apr – 7 May
22 Jun
4-6 wk
4 Jun
20 Jul
0 wk
Garden pea
Pisum sativum
7 – 14 May
15 Jun
3-4 wk
4 Jun
6 Jul
0 wk
8 Jun
26 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
29 Apr – 13 May
4-6 wk
10 Jun
1 wk after
Lemon balm
Melissa officinalis
26 Mar – 9 Apr
11 May
8-10 wk
4 Jun
6 Jul
0 wk
9 Jul
5 wk after
Dill
Anethum graveolens
8 Jun
8 Jul
1 wk after
Wild chives
Allium schoenoprasum
9 – 23 Apr
3 Jun
6-8 wk
4 Jun
15 Jul
0 wk
8 Jun
5 Jul
1 wk after
Spearmint
Mentha spicata
12 Mar – 9 Apr
20 May
8-12 wk
4 Jun
15 Jul
0 wk
9 Jul
5 wk after
Coriander
Coriandrum sativum
4 Jun
28 Jul
0 wk
25 Jun
18 Jul
3 wk after
Garden sage
Salvia officinalis
28 Mar – 11 Apr
5 May
8-10 wk
6 Jun
30 Jun
0 wk
Common thyme
Thymus vulgaris
26 Mar – 9 Apr
10 May
8-10 wk
4 Jun
5 Jul
0 wk
Oregano
Origanum vulgare
9 – 23 Apr
24 May
6-8 wk
4 Jun
5 Jul
0 wk
9 Jul
5 wk after
Parsley
Petroselinum crispum
9 – 23 Apr
24 May
6-8 wk
4 Jun
5 Jul
0 wk
8 Jun
25 Jun
1 wk after
Rosemary
Salvia rosmarinus
Fleece
26 Feb – 26 Mar
23 Mar
10-14 wk
4 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
13 – 20 May
3-4 wk
10 Jun
1 wk after
Cornflower
Centaurea cyanus
4 Jun
15 Jul
0 wk
8 Jun
5 Jul
1 wk after
Statice
Limonium sinuatum
Season too short
26 Mar – 9 Apr
8-10 wk
4 Jun
0 wk
Sweet William
Dianthus barbatus
9 – 23 Apr
6-8 wk
4 Jun
0 wk
20 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
Season too short
9 – 23 Apr
6-8 wk
4 Jun
0 wk
15 Jul
6 wk after
Pinnate dahlia
Dahlia × pinnata
Season too short
9 – 23 Apr
6-8 wk
4 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Season too short
19 Apr – 17 May
20 Apr
4-8 wk
14 Jun
1 wk after
14 Jun
1 wk after
Foxglove
Digitalis purpurea
26 Mar – 9 Apr
8-10 wk
4 Jun
0 wk
25 Jun
3 wk after
Busy lizzie
Impatiens walleriana
Season too short
18 Mar – 15 Apr
25 Mar
8-12 wk
10 Jun
1 wk after
Creeping zinnia
Sanvitalia procumbens
Season too short
9 – 23 Apr
6-8 wk
4 Jun
0 wk
Hyacinth bean
Dolichos lablab
Season too short
6 – 20 May
4-6 wk
17 Jun
2 wk after
Chinese lantern
Physalis alkekengi
Fleece
26 Mar – 9 Apr
11 Apr
8-10 wk
4 Jun
6 Jun
0 wk
Love in a mist
Nigella damascena
4 Jun
21 Jun
0 wk
8 Jun
11 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Season too short
9 – 23 Apr
6-8 wk
4 Jun
0 wk
15 Jul
6 wk after
Purple-top vervain
Verbena bonariensis
Fleece
12 Mar – 9 Apr
11 Apr
8-12 wk
4 Jun
6 Jun
0 wk
Cardoon
Cynara cardunculus
Season too short
12 Mar – 9 Apr
21 Mar
8-12 wk
4 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Season too short
18 Mar – 15 Apr
8-12 wk
10 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Season too short
15 – 29 Apr
6-8 wk
10 Jun
1 wk after
Corn poppy
Papaver rhoeas
4 Jun
6 Jul
0 wk
8 Jun
26 Jun
1 wk after
Snapdragon
Antirrhinum majus
12 Mar – 9 Apr
1 May
8-12 wk
4 Jun
26 Jun
0 wk
20 Jun
2 wk after
Flossflower
Ageratum houstonianum
Season too short
1 – 15 Apr
8-10 wk
10 Jun
1 wk after
Sweet pea
Lathyrus odoratus
9 – 30 Apr
31 May
5-8 wk
4 Jun
5 Jul
0 wk
Stock
Matthiola incana
9 – 23 Apr
25 May
6-8 wk
4 Jun
6 Jul
0 wk
25 Jun
26 Jun
3 wk after
Wormwood
Artemisia absinthium
9 – 23 Apr
4 May
6-8 wk
4 Jun
15 Jun
0 wk
25 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
29 Apr – 13 May
4-6 wk
10 Jun
1 wk after
Garden pansy
Viola × wittrockiana
26 Mar – 9 Apr
20 May
8-10 wk
4 Jun
15 Jul
0 wk
20 Jun
5 Jul
2 wk after
Petunia
Petunia
Season too short
12 Mar – 9 Apr
8-12 wk
4 Jun
0 wk
Sweet Scabious
Scabiosa atropurpurea
Fleece
9 – 23 Apr
25 Apr
6-8 wk
4 Jun
6 Jun
0 wk
9 Jul
5 wk after
Common zinnia
Zinnia elegans
Season too short
23 Apr – 7 May
4-6 wk
4 Jun
0 wk
Common morning glory
Ipomoea purpurea
Season too short
6 – 20 May
3-5 wk
10 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Season too short
23 Apr – 7 May
4-6 wk
4 Jun
0 wk
25 Jun
3 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
25 Mar – 22 Apr
8-12 wk
17 Jun
2 wk after
Bee balm
Monarda didyma
12 Mar – 9 Apr
11 Apr
8-12 wk
4 Jun
6 Jun
0 wk
9 Jul
5 wk after
Yarrow
Achillea millefolium
9 – 23 Apr
6-8 wk
4 Jun
0 wk
25 Jun
3 wk after
Safflower
Carthamus tinctorius
4 Jun
15 Jun
0 wk
8 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
9 – 23 Apr
24 May
6-8 wk
4 Jun
5 Jul
0 wk
17 May
25 Jun
3 wk before
Bishop's flower
Ammi majus
23 Apr – 7 May
29 May
4-6 wk
4 Jun
26 Jun
0 wk
25 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Season too short
18 Mar – 1 Apr
10-12 wk
10 Jun
1 wk after
Sunflower
Helianthus annuus
Fleece
13 – 20 May
31 May
3-4 wk
10 Jun
21 Jun
1 wk after
25 Jun
3 wk after
China aster
Callistephus chinensis
Fleece
15 – 29 Apr
20 May
6-8 wk
10 Jun
1 Jul
1 wk after
9 Jul
5 wk after
Annual phlox
Phlox drummondii
Season too short
9 – 23 Apr
6-8 wk
4 Jun
0 wk
25 Jun
3 wk after
Hollyhock
Alcea rosea
9 – 23 Apr
6-8 wk
4 Jun
0 wk
25 Jun
3 wk after
Alpine delphinium
Delphinium elatum
12 Mar – 9 Apr
11 Apr
8-12 wk
4 Jun
6 Jun
0 wk
9 Jul
5 wk after
African marigold
Tagetes erecta
Season too short
9 – 23 Apr
6-8 wk
4 Jun
0 wk
Black-eyed Susan
Rudbeckia hirta
11 – 25 Apr
29 Apr
6-8 wk
6 Jun
10 Jun
0 wk
23 Jul
7 wk after
Wood sage
Salvia nemorosa
26 Mar – 9 Apr
1 Apr
8-10 wk
4 Jun
0 wk
9 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
1 – 29 Apr
6-10 wk
10 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
4 Jun
1 Jul
0 wk
8 Jun
21 Jun
1 wk after
Painted tongue
Salpiglossis sinuata
Fleece
1 – 15 Apr
23 Apr
8-10 wk
10 Jun
18 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
9 – 23 Apr
4 May
6-8 wk
4 Jun
15 Jun
0 wk
25 Jun
3 wk after