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Method
Rel. frost
Last spring frost (0°C) 14 May Normal year · 20 years of data
Frost-free season 138 days 14 May – 29 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)
26 Mar – 9 Apr
20 Jun
5-7 wk
14 May
25 Jul
0 wk
8 May
15 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
2 – 16 Apr
2 Jul
4-6 wk
14 May
30 Jul
0 wk
8 May
20 Jul
1 wk before
Chili pepper
Capsicum annuum
Fleece
11 Mar – 8 Apr
15 Apr
8-12 wk
3 Jun
10 Jun
3 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
26 Mar – 9 Apr
15 Jun
5-7 wk
14 May
20 Jul
0 wk
1 May
10 Jul
2 wk before
Garden cucumber
Cucumis sativus
22 – 29 May
9 Jun
3-4 wk
19 Jun
30 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
15 – 22 May
5 Jun
4-5 wk
19 Jun
3 Jul
5 wk after
24 Jun
6 wk after
Butter bean
Phaseolus lunatus
Fleece
9 – 16 Jun
3-4 wk
7 Jul
8 wk after
Onion
Allium cepa (Cepa-gruppen)
19 Feb – 19 Mar
5 Apr
8-12 wk
14 May
31 May
0 wk
27 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
8 May
20 Jun
1 wk before
8 May
10 Jun
1 wk before
Maize
Zea mays
6 – 13 May
30 May
3-4 wk
3 Jun
20 Jun
3 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
21 – 28 Apr
9 Jul
3-4 wk
19 May
30 Jul
1 wk after
27 May
20 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
14 May
10 Jul
0 wk
1 May
30 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
26 Mar – 9 Apr
15 Jun
5-7 wk
14 May
20 Jul
0 wk
1 May
10 Jul
2 wk before
Potato
Solanum tuberosum
7 – 21 Apr
11 Jun
4-6 wk
19 May
9 Jul
1 wk after
19 May
29 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
26 Mar – 9 Apr
25 Jun
5-7 wk
14 May
30 Jul
0 wk
8 May
20 Jul
1 wk before
Pumpkin
Cucurbita pepo
22 – 29 May
20 Jun
3-4 wk
19 Jun
11 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
21 – 28 Apr
19 Jun
3-4 wk
19 May
10 Jul
1 wk after
27 May
30 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
2 – 16 Apr
27 Jun
4-6 wk
14 May
25 Jul
0 wk
Lettuce
Lactuca sativa
16 – 23 Apr
14 Jul
3-4 wk
14 May
4 Aug
0 wk
8 May
25 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
2 – 16 Apr
27 Jun
4-6 wk
14 May
25 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
3 – 17 Apr
6 Jun
2-4 wk
1 May
20 Jun
2 wk before
1 May
10 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
8 May
20 Jun
1 wk before
8 May
10 Jun
1 wk before
Spinach
Spinacia oleracea
16 – 23 Apr
29 Jul
3-4 wk
14 May
19 Aug
0 wk
24 Apr
9 Aug
3 wk before
Sweet potato
Ipomoea batatas
15 – 29 Jun
4-6 wk
27 Jul
11 wk after
Garden tomato
Solanum lycopersicum
8 – 22 Apr
9 May
6-8 wk
3 Jun
20 Jun
3 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
6 – 20 May
22 Jun
2-4 wk
3 Jun
6 Jul
3 wk after
24 Jun
26 Jun
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
2 – 16 Apr
27 Jun
4-6 wk
14 May
25 Jul
0 wk
Garden pea
Pisum sativum
16 – 23 Apr
29 Jun
3-4 wk
14 May
20 Jul
0 wk
8 May
10 Jul
1 wk before

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
8 – 22 May
29 May
4-6 wk
19 Jun
26 Jun
5 wk after
Lemon balm
Melissa officinalis
5 – 19 Mar
25 May
8-10 wk
14 May
20 Jul
0 wk
9 Jun
10 Jul
4 wk after
Dill
Anethum graveolens
8 May
30 Jul
1 wk before
Wild chives
Allium schoenoprasum
19 Mar – 2 Apr
8 Jun
6-8 wk
14 May
20 Jul
0 wk
8 May
10 Jul
1 wk before
Spearmint
Mentha spicata
19 Feb – 19 Mar
25 May
8-12 wk
14 May
20 Jul
0 wk
9 Jun
10 Jul
4 wk after
Coriander
Coriandrum sativum
14 May
19 Aug
0 wk
27 May
9 Aug
2 wk after
Garden sage
Salvia officinalis
10 – 24 Mar
10 May
8-10 wk
19 May
5 Jul
1 wk after
Common thyme
Thymus vulgaris
5 – 19 Mar
15 May
8-10 wk
14 May
10 Jul
0 wk
Oregano
Origanum vulgare
19 Mar – 2 Apr
29 May
6-8 wk
14 May
10 Jul
0 wk
9 Jun
30 Jun
4 wk after
Parsley
Petroselinum crispum
19 Mar – 2 Apr
29 May
6-8 wk
14 May
10 Jul
0 wk
8 May
30 Jun
1 wk before
Rosemary
Salvia rosmarinus
10 Feb – 10 Mar
9 Apr
10-14 wk
19 May
18 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
22 – 29 May
5 Jun
3-4 wk
19 Jun
26 Jun
5 wk after
Cornflower
Centaurea cyanus
14 May
20 Jul
0 wk
8 May
10 Jul
1 wk before
Statice
Limonium sinuatum
25 Mar – 8 Apr
9 May
8-10 wk
3 Jun
4 Jul
3 wk after
Sweet William
Dianthus barbatus
19 Mar – 2 Apr
6-8 wk
14 May
0 wk
19 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
8 – 22 Apr
23 May
6-8 wk
3 Jun
4 Jul
3 wk after
27 Jul
11 wk after
Pinnate dahlia
Dahlia × pinnata
1 – 15 Apr
29 May
6-8 wk
27 May
10 Jul
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
14 Apr – 12 May
12 Jun
4-8 wk
9 Jun
10 Jul
4 wk after
9 Jun
30 Jun
4 wk after
Foxglove
Digitalis purpurea
5 – 19 Mar
8-10 wk
14 May
0 wk
27 May
2 wk after
Busy lizzie
Impatiens walleriana
27 Mar – 24 Apr
1 Jul
8-12 wk
19 Jun
26 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
8 – 22 Apr
2 Jun
6-8 wk
3 Jun
14 Jul
3 wk after
Hyacinth bean
Dolichos lablab
Greenhouse
22 Apr – 6 May
14 May
4-6 wk
3 Jun
11 Jun
3 wk after
Chinese lantern
Physalis alkekengi
10 – 24 Mar
25 Apr
8-10 wk
19 May
20 Jun
1 wk after
Love in a mist
Nigella damascena
14 May
5 Jul
0 wk
8 May
25 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
8 – 22 Apr
13 May
6-8 wk
3 Jun
24 Jun
3 wk after
27 Jul
11 wk after
Purple-top vervain
Verbena bonariensis
24 Feb – 24 Mar
25 Apr
8-12 wk
19 May
20 Jun
1 wk after
Cardoon
Cynara cardunculus
11 Mar – 8 Apr
26 Mar
8-12 wk
3 Jun
3 wk after
Regal-foxtail
Ptilotus nobilis
27 Mar – 24 Apr
21 Apr
8-12 wk
19 Jun
5 wk after
Globe amaranth
Gomphrena globosa
24 Apr – 8 May
5 May
6-8 wk
19 Jun
5 wk after
Corn poppy
Papaver rhoeas
14 May
20 Jul
0 wk
8 May
10 Jul
1 wk before
Snapdragon
Antirrhinum majus
19 Feb – 19 Mar
15 May
8-12 wk
14 May
10 Jul
0 wk
19 May
30 Jun
1 wk after
Flossflower
Ageratum houstonianum
10 – 24 Apr
19 May
8-10 wk
19 Jun
14 Jul
5 wk after
Sweet pea
Lathyrus odoratus
19 Mar – 9 Apr
5 Jun
5-8 wk
14 May
10 Jul
0 wk
Stock
Matthiola incana
19 Mar – 2 Apr
8 Jun
6-8 wk
14 May
20 Jul
0 wk
27 May
10 Jul
2 wk after
Wormwood
Artemisia absinthium
19 Mar – 2 Apr
9 May
6-8 wk
14 May
20 Jun
0 wk
27 May
10 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
8 – 22 May
14 May
4-6 wk
19 Jun
5 wk after
Garden pansy
Viola × wittrockiana
5 – 19 Mar
25 May
8-10 wk
14 May
20 Jul
0 wk
19 May
10 Jul
1 wk after
Petunia
Petunia
11 Mar – 8 Apr
9 May
8-12 wk
3 Jun
4 Jul
3 wk after
Sweet Scabious
Scabiosa atropurpurea
24 Mar – 7 Apr
9 May
6-8 wk
19 May
20 Jun
1 wk after
24 Jun
6 wk after
Common zinnia
Zinnia elegans
22 Apr – 6 May
13 Jun
4-6 wk
3 Jun
11 Jul
3 wk after
Common morning glory
Ipomoea purpurea
15 – 29 May
5 Jun
3-5 wk
19 Jun
26 Jun
5 wk after
Garden cosmos
Cosmos bipinnatus
22 Apr – 6 May
12 Jun
4-6 wk
3 Jun
10 Jul
3 wk after
24 Jun
30 Jun
6 wk after
Scarlet milkweed
Asclepias curassavica
3 Apr – 1 May
21 May
8-12 wk
26 Jun
16 Jul
6 wk after
Bee balm
Monarda didyma
19 Feb – 19 Mar
25 Apr
8-12 wk
14 May
20 Jun
0 wk
9 Jun
10 Jun
4 wk after
Yarrow
Achillea millefolium
19 Mar – 2 Apr
9 Apr
6-8 wk
14 May
21 May
0 wk
27 May
2 wk after
Safflower
Carthamus tinctorius
14 May
20 Jun
0 wk
8 May
10 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
19 Mar – 2 Apr
29 May
6-8 wk
14 May
10 Jul
0 wk
29 Mar
30 Jun
7 wk before
Bishop's flower
Ammi majus
2 – 16 Apr
12 Jun
4-6 wk
14 May
10 Jul
0 wk
27 May
30 Jun
2 wk after
Drumsticks
Pycnosorus globosus
27 Mar – 10 Apr
2 Apr
10-12 wk
19 Jun
5 wk after
Sunflower
Helianthus annuus
6 – 13 May
17 Jun
3-4 wk
3 Jun
8 Jul
3 wk after
9 Jun
28 Jun
4 wk after
China aster
Callistephus chinensis
8 – 22 Apr
6 Jun
6-8 wk
3 Jun
18 Jul
3 wk after
24 Jun
8 Jul
6 wk after
Annual phlox
Phlox drummondii
29 Mar – 12 Apr
2 Jun
6-8 wk
24 May
14 Jul
1 wk after
24 Jun
4 Jul
6 wk after
Hollyhock
Alcea rosea
19 Mar – 2 Apr
6-8 wk
14 May
0 wk
27 May
2 wk after
Alpine delphinium
Delphinium elatum
19 Feb – 19 Mar
25 Apr
8-12 wk
14 May
20 Jun
0 wk
9 Jun
10 Jun
4 wk after
African marigold
Tagetes erecta
8 – 22 Apr
2 Jun
6-8 wk
3 Jun
14 Jul
3 wk after
Black-eyed Susan
Rudbeckia hirta
24 Mar – 7 Apr
27 May
6-8 wk
19 May
8 Jul
1 wk after
24 Jun
28 Jun
6 wk after
Wood sage
Salvia nemorosa
5 – 19 Mar
15 Apr
8-10 wk
14 May
10 Jun
0 wk
9 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
10 Apr – 8 May
15 May
6-10 wk
19 Jun
26 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
14 May
20 Jul
0 wk
8 May
10 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
25 Mar – 8 Apr
8 May
8-10 wk
3 Jun
3 Jul
3 wk after
Water forget-me-not
Myosotis scorpioides
19 Mar – 2 Apr
9 May
6-8 wk
14 May
20 Jun
0 wk
27 May
10 Jun
2 wk after