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Method
Rel. frost
Last spring frost (0°C) 25 May Normal year · 20 years of data
Frost-free season 116 days 25 May – 18 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)
6 – 20 Apr
13 Jun
5-7 wk
25 May
18 Jul
0 wk
26 May
8 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
13 – 27 Apr
25 Jun
4-6 wk
25 May
23 Jul
0 wk
26 May
13 Jul
0 wk
Chili pepper
Capsicum annuum
Greenhouse
13 Mar – 10 Apr
6 Apr
8-12 wk
5 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
6 – 20 Apr
8 Jun
5-7 wk
25 May
13 Jul
0 wk
25 May
3 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
17 – 24 May
31 May
3-4 wk
14 Jun
21 Jun
3 wk after
Florence Fennel
Foeniculum vulgare
24 – 31 May
28 May
4-5 wk
28 Jun
5 wk after
7 Jul
6 wk after
Butter bean
Phaseolus lunatus
Season too short
7 – 14 Jun
3-4 wk
5 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
2 – 30 Mar
21 Mar
8-12 wk
25 May
0 wk
7 Jun
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
26 May
5 Jun
0 wk
26 May
26 May
0 wk
Maize
Zea mays
Fleece
8 – 15 May
21 May
3-4 wk
5 Jun
11 Jun
2 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
3 – 10 May
2 Jul
3-4 wk
31 May
23 Jul
1 wk after
7 Jun
13 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
25 May
3 Jul
0 wk
25 May
23 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
6 – 20 Apr
8 Jun
5-7 wk
25 May
13 Jul
0 wk
25 May
3 Jul
0 wk
Potato
Solanum tuberosum
23 Apr – 7 May
20 May
4-6 wk
4 Jun
17 Jun
1 wk after
4 Jun
7 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
6 – 20 Apr
18 Jun
5-7 wk
25 May
23 Jul
0 wk
26 May
13 Jul
0 wk
Pumpkin
Cucurbita pepo
31 May – 7 Jun
5 Jun
3-4 wk
28 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
3 – 10 May
31 May
3-4 wk
31 May
21 Jun
1 wk after
7 Jun
11 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
13 – 27 Apr
20 Jun
4-6 wk
25 May
18 Jul
0 wk
Lettuce
Lactuca sativa
27 Apr – 4 May
7 Jul
3-4 wk
25 May
28 Jul
0 wk
26 May
18 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
13 – 27 Apr
20 Jun
4-6 wk
25 May
18 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
27 Apr – 11 May
27 May
2-4 wk
25 May
10 Jun
0 wk
25 May
31 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
26 May
5 Jun
0 wk
26 May
26 May
0 wk
Spinach
Spinacia oleracea
27 Apr – 4 May
22 Jul
3-4 wk
25 May
12 Aug
0 wk
22 May
2 Aug
0 wk
Sweet potato
Ipomoea batatas
19 Jun – 3 Jul
4-6 wk
31 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
10 – 24 Apr
30 Apr
6-8 wk
5 Jun
11 Jun
2 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
17 – 31 May
7 Jun
2-4 wk
14 Jun
21 Jun
3 wk after
7 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
13 – 27 Apr
20 Jun
4-6 wk
25 May
18 Jul
0 wk
Garden pea
Pisum sativum
27 Apr – 4 May
22 Jun
3-4 wk
25 May
13 Jul
0 wk
26 May
3 Jul
0 wk

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
17 – 31 May
4-6 wk
28 Jun
5 wk after
Lemon balm
Melissa officinalis
16 – 30 Mar
18 May
8-10 wk
25 May
13 Jul
0 wk
19 Jun
3 Jul
4 wk after
Dill
Anethum graveolens
26 May
23 Jul
0 wk
Wild chives
Allium schoenoprasum
30 Mar – 13 Apr
1 Jun
6-8 wk
25 May
13 Jul
0 wk
26 May
3 Jul
0 wk
Spearmint
Mentha spicata
2 – 30 Mar
18 May
8-12 wk
25 May
13 Jul
0 wk
19 Jun
3 Jul
4 wk after
Coriander
Coriandrum sativum
25 May
12 Aug
0 wk
7 Jun
2 Aug
2 wk after
Garden sage
Salvia officinalis
22 Mar – 5 Apr
3 May
8-10 wk
31 May
28 Jun
1 wk after
Common thyme
Thymus vulgaris
16 – 30 Mar
8 May
8-10 wk
25 May
3 Jul
0 wk
Oregano
Origanum vulgare
30 Mar – 13 Apr
22 May
6-8 wk
25 May
3 Jul
0 wk
19 Jun
23 Jun
4 wk after
Parsley
Petroselinum crispum
30 Mar – 13 Apr
22 May
6-8 wk
25 May
3 Jul
0 wk
26 May
23 Jun
0 wk
Rosemary
Salvia rosmarinus
22 Feb – 22 Mar
31 Mar
10-14 wk
31 May
9 Jun
1 wk after

Annual flowers

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Morning glory
Ipomoea tricolor
31 May – 7 Jun
3-4 wk
28 Jun
5 wk after
Cornflower
Centaurea cyanus
25 May
13 Jul
0 wk
26 May
3 Jul
0 wk
Statice
Limonium sinuatum
5 – 19 Apr
22 Apr
8-10 wk
14 Jun
17 Jun
3 wk after
Sweet William
Dianthus barbatus
30 Mar – 13 Apr
6-8 wk
25 May
0 wk
4 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
19 Apr – 3 May
6 May
6-8 wk
14 Jun
17 Jun
3 wk after
31 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
14 – 28 Apr
10 May
6-8 wk
9 Jun
21 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
24 Apr – 22 May
24 May
4-8 wk
19 Jun
21 Jun
4 wk after
19 Jun
4 wk after
Foxglove
Digitalis purpurea
16 – 30 Mar
8-10 wk
25 May
0 wk
7 Jun
2 wk after
Busy lizzie
Impatiens walleriana
5 Apr – 3 May
11 Jun
8-12 wk
28 Jun
6 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
19 Apr – 3 May
16 May
6-8 wk
14 Jun
27 Jun
3 wk after
Hyacinth bean
Dolichos lablab
Season too short
3 – 17 May
4-6 wk
14 Jun
3 wk after
Chinese lantern
Physalis alkekengi
22 Mar – 5 Apr
18 Apr
8-10 wk
31 May
13 Jun
1 wk after
Love in a mist
Nigella damascena
25 May
28 Jun
0 wk
26 May
18 Jun
0 wk
Strawflower
Xerochrysum bracteatum
19 Apr – 3 May
26 Apr
6-8 wk
14 Jun
3 wk after
31 Jul
10 wk after
Purple-top vervain
Verbena bonariensis
8 Mar – 5 Apr
18 Apr
8-12 wk
31 May
13 Jun
1 wk after
Cardoon
Cynara cardunculus
Fleece
13 Mar – 10 Apr
19 Mar
8-12 wk
5 Jun
2 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
22 Mar – 19 Apr
16 Apr
8-12 wk
14 Jun
3 wk after
Globe amaranth
Gomphrena globosa
Fleece
19 Apr – 3 May
30 Apr
6-8 wk
14 Jun
3 wk after
Corn poppy
Papaver rhoeas
25 May
13 Jul
0 wk
26 May
3 Jul
0 wk
Snapdragon
Antirrhinum majus
2 – 30 Mar
8 May
8-12 wk
25 May
3 Jul
0 wk
4 Jun
23 Jun
1 wk after
Flossflower
Ageratum houstonianum
19 Apr – 3 May
2 May
8-10 wk
28 Jun
5 wk after
Sweet pea
Lathyrus odoratus
30 Mar – 20 Apr
29 May
5-8 wk
25 May
3 Jul
0 wk
Stock
Matthiola incana
30 Mar – 13 Apr
1 Jun
6-8 wk
25 May
13 Jul
0 wk
7 Jun
3 Jul
2 wk after
Wormwood
Artemisia absinthium
30 Mar – 13 Apr
2 May
6-8 wk
25 May
13 Jun
0 wk
7 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
3 – 17 May
9 May
4-6 wk
14 Jun
3 wk after
Garden pansy
Viola × wittrockiana
16 – 30 Mar
18 May
8-10 wk
25 May
13 Jul
0 wk
4 Jun
3 Jul
1 wk after
Petunia
Petunia
22 Mar – 19 Apr
22 Apr
8-12 wk
14 Jun
17 Jun
3 wk after
Sweet Scabious
Scabiosa atropurpurea
5 – 19 Apr
2 May
6-8 wk
31 May
13 Jun
1 wk after
7 Jul
6 wk after
Common zinnia
Zinnia elegans
3 – 17 May
24 May
4-6 wk
14 Jun
21 Jun
3 wk after
Common morning glory
Ipomoea purpurea
24 May – 7 Jun
3-5 wk
28 Jun
5 wk after
Garden cosmos
Cosmos bipinnatus
3 – 17 May
24 May
4-6 wk
14 Jun
21 Jun
3 wk after
7 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
5 Apr – 3 May
16 May
8-12 wk
28 Jun
11 Jul
5 wk after
Bee balm
Monarda didyma
2 – 30 Mar
18 Apr
8-12 wk
25 May
13 Jun
0 wk
19 Jun
4 wk after
Yarrow
Achillea millefolium
30 Mar – 13 Apr
2 Apr
6-8 wk
25 May
0 wk
7 Jun
2 wk after
Safflower
Carthamus tinctorius
25 May
13 Jun
0 wk
26 May
3 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
30 Mar – 13 Apr
22 May
6-8 wk
25 May
3 Jul
0 wk
9 May
23 Jun
2 wk before
Bishop's flower
Ammi majus
13 – 27 Apr
5 Jun
4-6 wk
25 May
3 Jul
0 wk
7 Jun
23 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Fleece
22 Mar – 5 Apr
23 Mar
10-12 wk
14 Jun
3 wk after
Sunflower
Helianthus annuus
17 – 24 May
8 Jun
3-4 wk
14 Jun
29 Jun
3 wk after
19 Jun
19 Jun
4 wk after
China aster
Callistephus chinensis
19 Apr – 3 May
28 May
6-8 wk
14 Jun
9 Jul
3 wk after
7 Jul
6 wk after
Annual phlox
Phlox drummondii
10 – 24 Apr
16 May
6-8 wk
5 Jun
27 Jun
2 wk after
7 Jul
6 wk after
Hollyhock
Alcea rosea
30 Mar – 13 Apr
6-8 wk
25 May
0 wk
7 Jun
2 wk after
Alpine delphinium
Delphinium elatum
2 – 30 Mar
18 Apr
8-12 wk
25 May
13 Jun
0 wk
19 Jun
4 wk after
African marigold
Tagetes erecta
19 Apr – 3 May
16 May
6-8 wk
14 Jun
27 Jun
3 wk after
Black-eyed Susan
Rudbeckia hirta
5 – 19 Apr
18 May
6-8 wk
31 May
29 Jun
1 wk after
7 Jul
6 wk after
Wood sage
Salvia nemorosa
16 – 30 Mar
8 Apr
8-10 wk
25 May
3 Jun
0 wk
19 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
19 Apr – 17 May
30 Apr
6-10 wk
28 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
25 May
13 Jul
0 wk
26 May
3 Jul
0 wk
Painted tongue
Salpiglossis sinuata
5 – 19 Apr
30 Apr
8-10 wk
14 Jun
25 Jun
3 wk after
Water forget-me-not
Myosotis scorpioides
30 Mar – 13 Apr
2 May
6-8 wk
25 May
13 Jun
0 wk
7 Jun
2 wk after