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Method
Rel. frost
Last spring frost (0°C) 19 May Normal year · 20 years of data
Frost-free season 132 days 19 May – 28 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
17 Jun
5-7 wk
19 May
22 Jul
0 wk
12 May
12 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
7 – 21 Apr
29 Jun
4-6 wk
19 May
27 Jul
0 wk
12 May
17 Jul
1 wk before
Chili pepper
Capsicum annuum
Greenhouse
2 – 30 Mar
7 Apr
8-12 wk
25 May
2 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
31 Mar – 14 Apr
12 Jun
5-7 wk
19 May
17 Jul
0 wk
7 May
7 Jul
2 wk before
Garden cucumber
Cucumis sativus
Fleece
4 – 11 May
1 Jun
3-4 wk
1 Jun
22 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
16 – 23 May
31 May
4-5 wk
20 Jun
28 Jun
5 wk after
24 Jun
5 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
28 Mar
8-12 wk
19 May
23 May
0 wk
29 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
12 May
12 Jun
1 wk before
12 May
2 Jun
1 wk before
Maize
Zea mays
Fleece
27 Apr – 4 May
22 May
3-4 wk
25 May
12 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
23 – 30 Apr
6 Jul
3-4 wk
21 May
27 Jul
0 wk
29 May
17 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
19 May
7 Jul
0 wk
7 May
27 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
31 Mar – 14 Apr
12 Jun
5-7 wk
19 May
17 Jul
0 wk
7 May
7 Jul
2 wk before
Potato
Solanum tuberosum
12 – 26 Apr
27 May
4-6 wk
24 May
24 Jun
1 wk after
24 May
14 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
31 Mar – 14 Apr
22 Jun
5-7 wk
19 May
27 Jul
0 wk
12 May
17 Jul
1 wk before
Pumpkin
Cucurbita pepo
23 – 30 May
6 Jun
3-4 wk
20 Jun
27 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
23 – 30 Apr
5 Jun
3-4 wk
21 May
26 Jun
0 wk
29 May
16 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
7 – 21 Apr
24 Jun
4-6 wk
19 May
22 Jul
0 wk
Lettuce
Lactuca sativa
21 – 28 Apr
11 Jul
3-4 wk
19 May
1 Aug
0 wk
12 May
22 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
7 – 21 Apr
24 Jun
4-6 wk
19 May
22 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
9 – 23 Apr
3 Jun
2-4 wk
7 May
17 Jun
2 wk before
7 May
7 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
12 May
12 Jun
1 wk before
12 May
2 Jun
1 wk before
Spinach
Spinacia oleracea
21 – 28 Apr
26 Jul
3-4 wk
19 May
16 Aug
0 wk
1 May
6 Aug
3 wk before
Sweet potato
Ipomoea batatas
15 – 29 Jun
4-6 wk
27 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
30 Mar – 13 Apr
1 May
6-8 wk
25 May
12 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
4 – 18 May
8 Jun
2-4 wk
1 Jun
22 Jun
2 wk after
24 Jun
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
7 – 21 Apr
24 Jun
4-6 wk
19 May
22 Jul
0 wk
Garden pea
Pisum sativum
21 – 28 Apr
26 Jun
3-4 wk
19 May
17 Jul
0 wk
12 May
7 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
9 – 23 May
15 May
4-6 wk
20 Jun
5 wk after
Lemon balm
Melissa officinalis
10 – 24 Mar
22 May
8-10 wk
19 May
17 Jul
0 wk
9 Jun
7 Jul
3 wk after
Dill
Anethum graveolens
12 May
27 Jul
1 wk before
Wild chives
Allium schoenoprasum
24 Mar – 7 Apr
5 Jun
6-8 wk
19 May
17 Jul
0 wk
12 May
7 Jul
1 wk before
Spearmint
Mentha spicata
24 Feb – 24 Mar
22 May
8-12 wk
19 May
17 Jul
0 wk
9 Jun
7 Jul
3 wk after
Coriander
Coriandrum sativum
19 May
16 Aug
0 wk
29 May
6 Aug
1 wk after
Garden sage
Salvia officinalis
12 – 26 Mar
7 May
8-10 wk
21 May
2 Jul
0 wk
Common thyme
Thymus vulgaris
10 – 24 Mar
12 May
8-10 wk
19 May
7 Jul
0 wk
Oregano
Origanum vulgare
24 Mar – 7 Apr
26 May
6-8 wk
19 May
7 Jul
0 wk
9 Jun
27 Jun
3 wk after
Parsley
Petroselinum crispum
24 Mar – 7 Apr
26 May
6-8 wk
19 May
7 Jul
0 wk
12 May
27 Jun
1 wk before
Rosemary
Salvia rosmarinus
12 Feb – 12 Mar
4 Apr
10-14 wk
21 May
13 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
3-4 wk
20 Jun
5 wk after
Cornflower
Centaurea cyanus
19 May
17 Jul
0 wk
12 May
7 Jul
1 wk before
Statice
Limonium sinuatum
23 Mar – 6 Apr
28 Apr
8-10 wk
1 Jun
23 Jun
2 wk after
Sweet William
Dianthus barbatus
24 Mar – 7 Apr
6-8 wk
19 May
0 wk
24 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
6 – 20 Apr
12 May
6-8 wk
1 Jun
23 Jun
2 wk after
27 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
4 – 18 Apr
18 May
6-8 wk
30 May
29 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
14 Apr – 12 May
1 Jun
4-8 wk
9 Jun
29 Jun
3 wk after
9 Jun
19 Jun
3 wk after
Foxglove
Digitalis purpurea
10 – 24 Mar
8-10 wk
19 May
0 wk
29 May
1 wk after
Busy lizzie
Impatiens walleriana
28 Mar – 25 Apr
18 Jun
8-12 wk
20 Jun
13 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
6 – 20 Apr
22 May
6-8 wk
1 Jun
3 Jul
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
20 Apr – 4 May
1 May
4-6 wk
1 Jun
2 wk after
Chinese lantern
Physalis alkekengi
12 – 26 Mar
22 Apr
8-10 wk
21 May
17 Jun
0 wk
Love in a mist
Nigella damascena
19 May
2 Jul
0 wk
12 May
22 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
6 – 20 Apr
2 May
6-8 wk
1 Jun
13 Jun
2 wk after
27 Jul
10 wk after
Purple-top vervain
Verbena bonariensis
26 Feb – 26 Mar
22 Apr
8-12 wk
21 May
17 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
2 – 30 Mar
23 Mar
8-12 wk
25 May
1 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
9 Mar – 6 Apr
23 Apr
8-12 wk
1 Jun
18 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Fleece
6 – 20 Apr
7 May
6-8 wk
1 Jun
18 Jun
2 wk after
Corn poppy
Papaver rhoeas
19 May
17 Jul
0 wk
12 May
7 Jul
1 wk before
Snapdragon
Antirrhinum majus
24 Feb – 24 Mar
12 May
8-12 wk
19 May
7 Jul
0 wk
24 May
27 Jun
1 wk after
Flossflower
Ageratum houstonianum
11 – 25 Apr
8 May
8-10 wk
20 Jun
3 Jul
5 wk after
Sweet pea
Lathyrus odoratus
24 Mar – 14 Apr
2 Jun
5-8 wk
19 May
7 Jul
0 wk
Stock
Matthiola incana
24 Mar – 7 Apr
5 Jun
6-8 wk
19 May
17 Jul
0 wk
29 May
7 Jul
1 wk after
Wormwood
Artemisia absinthium
24 Mar – 7 Apr
6 May
6-8 wk
19 May
17 Jun
0 wk
29 May
7 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
20 Apr – 4 May
16 May
4-6 wk
1 Jun
13 Jun
2 wk after
Garden pansy
Viola × wittrockiana
10 – 24 Mar
22 May
8-10 wk
19 May
17 Jul
0 wk
24 May
7 Jul
1 wk after
Petunia
Petunia
9 Mar – 6 Apr
28 Apr
8-12 wk
1 Jun
23 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
26 Mar – 9 Apr
6 May
6-8 wk
21 May
17 Jun
0 wk
24 Jun
5 wk after
Common zinnia
Zinnia elegans
20 Apr – 4 May
31 May
4-6 wk
1 Jun
28 Jun
2 wk after
Common morning glory
Ipomoea purpurea
16 – 30 May
22 May
3-5 wk
20 Jun
5 wk after
Garden cosmos
Cosmos bipinnatus
20 Apr – 4 May
1 Jun
4-6 wk
1 Jun
29 Jun
2 wk after
24 Jun
5 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
28 Mar – 25 Apr
23 May
8-12 wk
20 Jun
18 Jul
5 wk after
Bee balm
Monarda didyma
24 Feb – 24 Mar
22 Apr
8-12 wk
19 May
17 Jun
0 wk
9 Jun
3 wk after
Yarrow
Achillea millefolium
24 Mar – 7 Apr
6 Apr
6-8 wk
19 May
0 wk
29 May
1 wk after
Safflower
Carthamus tinctorius
19 May
17 Jun
0 wk
12 May
7 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
24 Mar – 7 Apr
26 May
6-8 wk
19 May
7 Jul
0 wk
10 Apr
27 Jun
6 wk before
Bishop's flower
Ammi majus
7 – 21 Apr
9 Jun
4-6 wk
19 May
7 Jul
0 wk
29 May
27 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Fleece
9 – 23 Mar
31 Mar
10-12 wk
1 Jun
9 Jun
2 wk after
Sunflower
Helianthus annuus
4 – 11 May
12 Jun
3-4 wk
1 Jun
3 Jul
2 wk after
9 Jun
23 Jun
3 wk after
China aster
Callistephus chinensis
6 – 20 Apr
1 Jun
6-8 wk
1 Jun
13 Jul
2 wk after
24 Jun
3 Jul
5 wk after
Annual phlox
Phlox drummondii
30 Mar – 13 Apr
22 May
6-8 wk
25 May
3 Jul
1 wk after
24 Jun
5 wk after
Hollyhock
Alcea rosea
24 Mar – 7 Apr
6-8 wk
19 May
0 wk
29 May
1 wk after
Alpine delphinium
Delphinium elatum
24 Feb – 24 Mar
22 Apr
8-12 wk
19 May
17 Jun
0 wk
9 Jun
3 wk after
African marigold
Tagetes erecta
6 – 20 Apr
22 May
6-8 wk
1 Jun
3 Jul
2 wk after
Black-eyed Susan
Rudbeckia hirta
26 Mar – 9 Apr
22 May
6-8 wk
21 May
3 Jul
0 wk
24 Jun
5 wk after
Wood sage
Salvia nemorosa
10 – 24 Mar
12 Apr
8-10 wk
19 May
7 Jun
0 wk
9 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
11 Apr – 9 May
1 May
6-10 wk
20 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
19 May
17 Jul
0 wk
12 May
7 Jul
1 wk before
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
6 May
6-8 wk
19 May
17 Jun
0 wk
29 May
7 Jun
1 wk after