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Method
Rel. frost
Last spring frost (0°C) 2 Jun Frost 1 of 10 years · 20 years of data
Frost-free season 110 days 2 Jun – 20 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)
14 – 28 Apr
9 Jun
5-7 wk
2 Jun
14 Jul
0 wk
3 Jun
4 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
21 Apr – 5 May
21 Jun
4-6 wk
2 Jun
19 Jul
0 wk
3 Jun
9 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
16 Mar – 13 Apr
8-12 wk
8 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
14 – 28 Apr
4 Jun
5-7 wk
2 Jun
9 Jul
0 wk
2 Jun
29 Jun
0 wk
Garden cucumber
Cucumis sativus
Season too short
11 – 18 May
3-4 wk
8 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
30 May – 6 Jun
31 May
4-5 wk
4 Jul
5 wk after
15 Jul
6 wk after
Butter bean
Phaseolus lunatus
Season too short
13 – 20 Jun
3-4 wk
11 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
10 Mar – 7 Apr
25 Mar
8-12 wk
2 Jun
0 wk
15 Jun
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
Fleece
30 May
9 Jun
0 wk
30 May
30 May
0 wk
Maize
Zea mays
Season too short
5 – 12 May
3-4 wk
2 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
7 – 14 May
28 Jun
3-4 wk
4 Jun
19 Jul
0 wk
15 Jun
9 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
2 Jun
29 Jun
0 wk
2 Jun
19 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
14 – 28 Apr
4 Jun
5-7 wk
2 Jun
9 Jul
0 wk
2 Jun
29 Jun
0 wk
Potato
Solanum tuberosum
Fleece
22 Apr – 6 May
1 Jun
4-6 wk
3 Jun
29 Jun
0 wk
3 Jun
19 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
14 – 28 Apr
14 Jun
5-7 wk
2 Jun
19 Jul
0 wk
3 Jun
9 Jul
0 wk
Pumpkin
Cucurbita pepo
Greenhouse
11 – 18 May
19 May
3-4 wk
8 Jun
9 Jun
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
7 – 14 May
30 May
3-4 wk
4 Jun
20 Jun
0 wk
15 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
21 Apr – 5 May
16 Jun
4-6 wk
2 Jun
14 Jul
0 wk
Lettuce
Lactuca sativa
5 – 12 May
3 Jul
3-4 wk
2 Jun
24 Jul
0 wk
3 Jun
14 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
21 Apr – 5 May
16 Jun
4-6 wk
2 Jun
14 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
5 – 19 May
26 May
2-4 wk
2 Jun
9 Jun
0 wk
2 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Fleece
30 May
9 Jun
0 wk
30 May
30 May
0 wk
Spinach
Spinacia oleracea
5 – 12 May
18 Jul
3-4 wk
2 Jun
8 Aug
0 wk
30 May
29 Jul
0 wk
Sweet potato
Ipomoea batatas
27 Jun – 11 Jul
4-6 wk
8 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
7 – 21 Apr
6-8 wk
2 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
5 – 19 May
21 May
2-4 wk
2 Jun
4 Jun
0 wk
15 Jun
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
21 Apr – 5 May
16 Jun
4-6 wk
2 Jun
14 Jul
0 wk
Garden pea
Pisum sativum
5 – 12 May
18 Jun
3-4 wk
2 Jun
9 Jul
0 wk
3 Jun
29 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
27 Apr – 11 May
27 Apr
4-6 wk
8 Jun
1 wk after
Lemon balm
Melissa officinalis
24 Mar – 7 Apr
14 May
8-10 wk
2 Jun
9 Jul
0 wk
27 Jun
29 Jun
4 wk after
Dill
Anethum graveolens
3 Jun
19 Jul
0 wk
Wild chives
Allium schoenoprasum
7 – 21 Apr
28 May
6-8 wk
2 Jun
9 Jul
0 wk
3 Jun
29 Jun
0 wk
Spearmint
Mentha spicata
10 Mar – 7 Apr
14 May
8-12 wk
2 Jun
9 Jul
0 wk
27 Jun
29 Jun
4 wk after
Coriander
Coriandrum sativum
2 Jun
8 Aug
0 wk
15 Jun
29 Jul
2 wk after
Garden sage
Salvia officinalis
26 Mar – 9 Apr
29 Apr
8-10 wk
4 Jun
24 Jun
0 wk
Common thyme
Thymus vulgaris
24 Mar – 7 Apr
4 May
8-10 wk
2 Jun
29 Jun
0 wk
Oregano
Origanum vulgare
7 – 21 Apr
18 May
6-8 wk
2 Jun
29 Jun
0 wk
27 Jun
4 wk after
Parsley
Petroselinum crispum
7 – 21 Apr
18 May
6-8 wk
2 Jun
29 Jun
0 wk
3 Jun
19 Jun
0 wk
Rosemary
Salvia rosmarinus
26 Feb – 26 Mar
31 Mar
10-14 wk
4 Jun
9 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
11 – 18 May
3-4 wk
8 Jun
1 wk after
Cornflower
Centaurea cyanus
2 Jun
9 Jul
0 wk
3 Jun
29 Jun
0 wk
Statice
Limonium sinuatum
Greenhouse
24 Mar – 7 Apr
18 Apr
8-10 wk
2 Jun
13 Jun
0 wk
Sweet William
Dianthus barbatus
7 – 21 Apr
6-8 wk
2 Jun
0 wk
12 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Greenhouse
7 – 21 Apr
2 May
6-8 wk
2 Jun
13 Jun
0 wk
4 Jul
5 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
9 – 23 Apr
15 Apr
6-8 wk
4 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
13 Apr – 11 May
17 May
4-8 wk
8 Jun
14 Jun
1 wk after
8 Jun
1 wk after
Foxglove
Digitalis purpurea
24 Mar – 7 Apr
8-10 wk
2 Jun
0 wk
15 Jun
2 wk after
Busy lizzie
Impatiens walleriana
Fleece
23 Mar – 20 Apr
15 May
8-12 wk
15 Jun
10 Jul
2 wk after
Creeping zinnia
Sanvitalia procumbens
Greenhouse
7 – 21 Apr
12 May
6-8 wk
2 Jun
23 Jun
0 wk
Hyacinth bean
Dolichos lablab
Season too short
4 – 18 May
4-6 wk
15 Jun
2 wk after
Chinese lantern
Physalis alkekengi
26 Mar – 9 Apr
14 Apr
8-10 wk
4 Jun
9 Jun
0 wk
Love in a mist
Nigella damascena
2 Jun
24 Jun
0 wk
3 Jun
14 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Greenhouse
7 – 21 Apr
22 Apr
6-8 wk
2 Jun
3 Jun
0 wk
4 Jul
5 wk after
Purple-top vervain
Verbena bonariensis
12 Mar – 9 Apr
14 Apr
8-12 wk
4 Jun
9 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
16 Mar – 13 Apr
8-12 wk
8 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
16 Mar – 13 Apr
20 Mar
8-12 wk
8 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Season too short
13 – 27 Apr
6-8 wk
8 Jun
1 wk after
Corn poppy
Papaver rhoeas
2 Jun
9 Jul
0 wk
3 Jun
29 Jun
0 wk
Snapdragon
Antirrhinum majus
10 Mar – 7 Apr
4 May
8-12 wk
2 Jun
29 Jun
0 wk
12 Jun
19 Jun
1 wk after
Flossflower
Ageratum houstonianum
Greenhouse
30 Mar – 13 Apr
28 Apr
8-10 wk
8 Jun
23 Jun
1 wk after
Sweet pea
Lathyrus odoratus
7 – 28 Apr
25 May
5-8 wk
2 Jun
29 Jun
0 wk
Stock
Matthiola incana
7 – 21 Apr
28 May
6-8 wk
2 Jun
9 Jul
0 wk
15 Jun
29 Jun
2 wk after
Wormwood
Artemisia absinthium
7 – 21 Apr
28 Apr
6-8 wk
2 Jun
9 Jun
0 wk
15 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
27 Apr – 11 May
4-6 wk
8 Jun
1 wk after
Garden pansy
Viola × wittrockiana
24 Mar – 7 Apr
14 May
8-10 wk
2 Jun
9 Jul
0 wk
12 Jun
29 Jun
1 wk after
Petunia
Petunia
Greenhouse
10 Mar – 7 Apr
18 Apr
8-12 wk
2 Jun
13 Jun
0 wk
Sweet Scabious
Scabiosa atropurpurea
9 – 23 Apr
28 Apr
6-8 wk
4 Jun
9 Jun
0 wk
15 Jul
6 wk after
Common zinnia
Zinnia elegans
Greenhouse
21 Apr – 5 May
9 May
4-6 wk
2 Jun
6 Jun
0 wk
Common morning glory
Ipomoea purpurea
Season too short
4 – 18 May
4 May
3-5 wk
8 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Greenhouse
21 Apr – 5 May
17 May
4-6 wk
2 Jun
14 Jun
0 wk
15 Jun
2 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
23 Mar – 20 Apr
19 Apr
8-12 wk
15 Jun
2 wk after
Bee balm
Monarda didyma
10 Mar – 7 Apr
14 Apr
8-12 wk
2 Jun
9 Jun
0 wk
27 Jun
4 wk after
Yarrow
Achillea millefolium
7 – 21 Apr
6-8 wk
2 Jun
0 wk
15 Jun
2 wk after
Safflower
Carthamus tinctorius
2 Jun
9 Jun
0 wk
3 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
7 – 21 Apr
18 May
6-8 wk
2 Jun
29 Jun
0 wk
17 May
19 Jun
2 wk before
Bishop's flower
Ammi majus
21 Apr – 5 May
1 Jun
4-6 wk
2 Jun
29 Jun
0 wk
15 Jun
19 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
16 – 30 Mar
10-12 wk
8 Jun
1 wk after
Sunflower
Helianthus annuus
18 – 25 May
8 Jun
3-4 wk
15 Jun
29 Jun
2 wk after
27 Jun
4 wk after
China aster
Callistephus chinensis
20 Apr – 4 May
28 May
6-8 wk
15 Jun
9 Jul
2 wk after
15 Jul
6 wk after
Annual phlox
Phlox drummondii
Fleece
7 – 21 Apr
17 Apr
6-8 wk
2 Jun
0 wk
27 Jun
4 wk after
Hollyhock
Alcea rosea
7 – 21 Apr
6-8 wk
2 Jun
0 wk
15 Jun
2 wk after
Alpine delphinium
Delphinium elatum
10 Mar – 7 Apr
14 Apr
8-12 wk
2 Jun
9 Jun
0 wk
27 Jun
4 wk after
African marigold
Tagetes erecta
Greenhouse
7 – 21 Apr
12 May
6-8 wk
2 Jun
23 Jun
0 wk
Black-eyed Susan
Rudbeckia hirta
9 – 23 Apr
18 May
6-8 wk
4 Jun
29 Jun
0 wk
15 Jul
6 wk after
Wood sage
Salvia nemorosa
24 Mar – 7 Apr
4 Apr
8-10 wk
2 Jun
0 wk
27 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
30 Mar – 27 Apr
13 Apr
6-10 wk
8 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
2 Jun
9 Jul
0 wk
3 Jun
29 Jun
0 wk
Painted tongue
Salpiglossis sinuata
6 – 20 Apr
3 May
8-10 wk
15 Jun
28 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
7 – 21 Apr
28 Apr
6-8 wk
2 Jun
9 Jun
0 wk
15 Jun
2 wk after