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Method
Rel. frost
Last spring frost (0°C) 19 May Normal year · 20 years of data
Frost-free season 129 days 19 May – 25 Sep
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
14 Jun
5-7 wk
19 May
19 Jul
0 wk
23 May
9 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
7 – 21 Apr
26 Jun
4-6 wk
19 May
24 Jul
0 wk
23 May
14 Jul
1 wk after
Chili pepper
Capsicum annuum
Greenhouse
2 – 30 Mar
16 Apr
8-12 wk
25 May
11 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
31 Mar – 14 Apr
9 Jun
5-7 wk
19 May
14 Jul
0 wk
19 May
4 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
4 – 11 May
10 Jun
3-4 wk
1 Jun
1 Jul
2 wk after
Florence Fennel
Foeniculum vulgare
16 – 23 May
31 May
4-5 wk
20 Jun
28 Jun
5 wk after
7 Jul
7 wk after
Butter bean
Phaseolus lunatus
Season too short
30 May – 6 Jun
3-4 wk
27 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
24 Feb – 24 Mar
30 Mar
8-12 wk
19 May
25 May
0 wk
9 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
23 May
14 Jun
1 wk after
23 May
4 Jun
1 wk after
Maize
Zea mays
Fleece
27 Apr – 4 May
31 May
3-4 wk
25 May
21 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
23 – 30 Apr
3 Jul
3-4 wk
21 May
24 Jul
0 wk
9 Jun
14 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
19 May
4 Jul
0 wk
19 May
24 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
31 Mar – 14 Apr
9 Jun
5-7 wk
19 May
14 Jul
0 wk
19 May
4 Jul
0 wk
Potato
Solanum tuberosum
23 Apr – 7 May
30 May
4-6 wk
4 Jun
27 Jun
2 wk after
4 Jun
17 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
31 Mar – 14 Apr
19 Jun
5-7 wk
19 May
24 Jul
0 wk
23 May
14 Jul
1 wk after
Pumpkin
Cucurbita pepo
23 – 30 May
15 Jun
3-4 wk
20 Jun
6 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
23 – 30 Apr
12 Jun
3-4 wk
21 May
3 Jul
0 wk
9 Jun
23 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
7 – 21 Apr
21 Jun
4-6 wk
19 May
19 Jul
0 wk
Lettuce
Lactuca sativa
21 – 28 Apr
8 Jul
3-4 wk
19 May
29 Jul
0 wk
23 May
19 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
7 – 21 Apr
21 Jun
4-6 wk
19 May
19 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
21 Apr – 5 May
31 May
2-4 wk
19 May
14 Jun
0 wk
19 May
4 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
23 May
14 Jun
1 wk after
23 May
4 Jun
1 wk after
Spinach
Spinacia oleracea
21 – 28 Apr
23 Jul
3-4 wk
19 May
13 Aug
0 wk
15 May
3 Aug
1 wk before
Sweet potato
Ipomoea batatas
20 Jun – 4 Jul
4-6 wk
1 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Fleece
30 Mar – 13 Apr
10 May
6-8 wk
25 May
21 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
4 – 18 May
17 Jun
2-4 wk
1 Jun
1 Jul
2 wk after
7 Jul
7 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
7 – 21 Apr
21 Jun
4-6 wk
19 May
19 Jul
0 wk
Garden pea
Pisum sativum
21 – 28 Apr
23 Jun
3-4 wk
19 May
14 Jul
0 wk
23 May
4 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
9 – 23 May
24 May
4-6 wk
20 Jun
21 Jun
5 wk after
Lemon balm
Melissa officinalis
10 – 24 Mar
19 May
8-10 wk
19 May
14 Jul
0 wk
23 Jun
4 Jul
5 wk after
Dill
Anethum graveolens
23 May
24 Jul
1 wk after
Wild chives
Allium schoenoprasum
24 Mar – 7 Apr
2 Jun
6-8 wk
19 May
14 Jul
0 wk
23 May
4 Jul
1 wk after
Spearmint
Mentha spicata
24 Feb – 24 Mar
19 May
8-12 wk
19 May
14 Jul
0 wk
23 Jun
4 Jul
5 wk after
Coriander
Coriandrum sativum
19 May
13 Aug
0 wk
9 Jun
3 Aug
3 wk after
Garden sage
Salvia officinalis
12 – 26 Mar
4 May
8-10 wk
21 May
29 Jun
0 wk
Common thyme
Thymus vulgaris
10 – 24 Mar
9 May
8-10 wk
19 May
4 Jul
0 wk
Oregano
Origanum vulgare
24 Mar – 7 Apr
23 May
6-8 wk
19 May
4 Jul
0 wk
23 Jun
24 Jun
5 wk after
Parsley
Petroselinum crispum
24 Mar – 7 Apr
23 May
6-8 wk
19 May
4 Jul
0 wk
23 May
24 Jun
1 wk after
Rosemary
Salvia rosmarinus
12 Feb – 12 Mar
31 Mar
10-14 wk
21 May
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
23 – 30 May
31 May
3-4 wk
20 Jun
21 Jun
5 wk after
Cornflower
Centaurea cyanus
19 May
14 Jul
0 wk
23 May
4 Jul
1 wk after
Statice
Limonium sinuatum
23 Mar – 6 Apr
30 Apr
8-10 wk
1 Jun
25 Jun
2 wk after
Sweet William
Dianthus barbatus
24 Mar – 7 Apr
6-8 wk
19 May
0 wk
4 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
6 – 20 Apr
14 May
6-8 wk
1 Jun
25 Jun
2 wk after
1 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
4 – 18 Apr
14 May
6-8 wk
30 May
25 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
28 Apr – 26 May
28 May
4-8 wk
23 Jun
25 Jun
5 wk after
23 Jun
5 wk after
Foxglove
Digitalis purpurea
10 – 24 Mar
8-10 wk
19 May
0 wk
9 Jun
3 wk after
Busy lizzie
Impatiens walleriana
28 Mar – 25 Apr
19 Jun
8-12 wk
20 Jun
14 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
6 – 20 Apr
24 May
6-8 wk
1 Jun
5 Jul
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
20 Apr – 4 May
2 May
4-6 wk
1 Jun
2 wk after
Chinese lantern
Physalis alkekengi
12 – 26 Mar
19 Apr
8-10 wk
21 May
14 Jun
0 wk
Love in a mist
Nigella damascena
19 May
29 Jun
0 wk
23 May
19 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
6 – 20 Apr
4 May
6-8 wk
1 Jun
15 Jun
2 wk after
1 Aug
11 wk after
Purple-top vervain
Verbena bonariensis
26 Feb – 26 Mar
19 Apr
8-12 wk
21 May
14 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
2 – 30 Mar
20 Mar
8-12 wk
25 May
1 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
9 Mar – 6 Apr
24 Apr
8-12 wk
1 Jun
19 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Fleece
6 – 20 Apr
8 May
6-8 wk
1 Jun
19 Jun
2 wk after
Corn poppy
Papaver rhoeas
19 May
14 Jul
0 wk
23 May
4 Jul
1 wk after
Snapdragon
Antirrhinum majus
24 Feb – 24 Mar
9 May
8-12 wk
19 May
4 Jul
0 wk
4 Jun
24 Jun
2 wk after
Flossflower
Ageratum houstonianum
11 – 25 Apr
10 May
8-10 wk
20 Jun
5 Jul
5 wk after
Sweet pea
Lathyrus odoratus
24 Mar – 14 Apr
30 May
5-8 wk
19 May
4 Jul
0 wk
Stock
Matthiola incana
24 Mar – 7 Apr
2 Jun
6-8 wk
19 May
14 Jul
0 wk
9 Jun
4 Jul
3 wk after
Wormwood
Artemisia absinthium
24 Mar – 7 Apr
3 May
6-8 wk
19 May
14 Jun
0 wk
9 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
20 Apr – 4 May
17 May
4-6 wk
1 Jun
14 Jun
2 wk after
Garden pansy
Viola × wittrockiana
10 – 24 Mar
19 May
8-10 wk
19 May
14 Jul
0 wk
4 Jun
4 Jul
2 wk after
Petunia
Petunia
9 Mar – 6 Apr
30 Apr
8-12 wk
1 Jun
25 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
26 Mar – 9 Apr
3 May
6-8 wk
21 May
14 Jun
0 wk
7 Jul
7 wk after
Common zinnia
Zinnia elegans
20 Apr – 4 May
1 Jun
4-6 wk
1 Jun
29 Jun
2 wk after
Common morning glory
Ipomoea purpurea
16 – 30 May
31 May
3-5 wk
20 Jun
21 Jun
5 wk after
Garden cosmos
Cosmos bipinnatus
20 Apr – 4 May
28 May
4-6 wk
1 Jun
25 Jun
2 wk after
7 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
28 Mar – 25 Apr
24 May
8-12 wk
20 Jun
19 Jul
5 wk after
Bee balm
Monarda didyma
24 Feb – 24 Mar
19 Apr
8-12 wk
19 May
14 Jun
0 wk
23 Jun
5 wk after
Yarrow
Achillea millefolium
24 Mar – 7 Apr
3 Apr
6-8 wk
19 May
0 wk
9 Jun
3 wk after
Safflower
Carthamus tinctorius
19 May
14 Jun
0 wk
23 May
4 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
24 Mar – 7 Apr
23 May
6-8 wk
19 May
4 Jul
0 wk
1 May
24 Jun
3 wk before
Bishop's flower
Ammi majus
7 – 21 Apr
6 Jun
4-6 wk
19 May
4 Jul
0 wk
9 Jun
24 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Fleece
9 – 23 Mar
27 Mar
10-12 wk
1 Jun
5 Jun
2 wk after
Sunflower
Helianthus annuus
4 – 11 May
8 Jun
3-4 wk
1 Jun
29 Jun
2 wk after
23 Jun
5 wk after
China aster
Callistephus chinensis
6 – 20 Apr
28 May
6-8 wk
1 Jun
9 Jul
2 wk after
7 Jul
7 wk after
Annual phlox
Phlox drummondii
30 Mar – 13 Apr
24 May
6-8 wk
25 May
5 Jul
1 wk after
7 Jul
7 wk after
Hollyhock
Alcea rosea
24 Mar – 7 Apr
6-8 wk
19 May
0 wk
9 Jun
3 wk after
Alpine delphinium
Delphinium elatum
24 Feb – 24 Mar
19 Apr
8-12 wk
19 May
14 Jun
0 wk
23 Jun
5 wk after
African marigold
Tagetes erecta
6 – 20 Apr
24 May
6-8 wk
1 Jun
5 Jul
2 wk after
Black-eyed Susan
Rudbeckia hirta
26 Mar – 9 Apr
18 May
6-8 wk
21 May
29 Jun
0 wk
7 Jul
7 wk after
Wood sage
Salvia nemorosa
10 – 24 Mar
9 Apr
8-10 wk
19 May
4 Jun
0 wk
23 Jun
5 wk after
Black-eyed susan vine
Thunbergia alata
11 Apr – 9 May
10 May
6-10 wk
20 Jun
21 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
19 May
14 Jul
0 wk
23 May
4 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
23 Mar – 6 Apr
3 May
8-10 wk
1 Jun
28 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
24 Mar – 7 Apr
3 May
6-8 wk
19 May
14 Jun
0 wk
9 Jun
3 wk after