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Method
Rel. frost
Last spring frost (0°C) 14 May Normal year · 20 years of data
Frost-free season 133 days 14 May – 24 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)
27 Apr – 11 May
19 Jun
5-7 wk
15 Jun
24 Jul
5 wk after
8 May
14 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
22 Apr – 6 May
1 Jul
4-6 wk
3 Jun
29 Jul
3 wk after
8 May
19 Jul
1 wk before
Chili pepper
Capsicum annuum
Greenhouse
1 – 29 Apr
19 Apr
8-12 wk
24 Jun
6 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
24 Feb – 10 Mar
14 Jun
5-7 wk
14 Apr
19 Jul
4 wk before
1 May
9 Jul
2 wk before
Garden cucumber
Cucumis sativus
22 – 29 Jun
3-4 wk
20 Jul
10 wk after
Florence Fennel
Foeniculum vulgare
15 – 22 Jun
4-5 wk
20 Jul
10 wk after
24 Jun
6 wk after
Butter bean
Phaseolus lunatus
Greenhouse
26 Jun – 3 Jul
3-4 wk
24 Jul
10 wk after
Onion
Allium cepa (Cepa-gruppen)
19 Feb – 19 Mar
4 Apr
8-12 wk
14 May
30 May
Vid frost
27 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
8 May
19 Jun
1 wk before
8 May
9 Jun
1 wk before
Maize
Zea mays
11 – 18 Jun
3-4 wk
9 Jul
8 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
18 – 25 May
8 Jul
3-4 wk
15 Jun
29 Jul
5 wk after
27 May
19 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
1 May
29 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
24 Feb – 10 Mar
14 Jun
5-7 wk
14 Apr
19 Jul
4 wk before
1 May
9 Jul
2 wk before
Potato
Solanum tuberosum
7 – 21 Apr
8 Jun
4-6 wk
19 May
6 Jul
1 wk after
19 May
26 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
24 Feb – 10 Mar
24 Jun
5-7 wk
14 Apr
29 Jul
4 wk before
8 May
19 Jul
1 wk before
Pumpkin
Cucurbita pepo
22 – 29 Jun
3-4 wk
20 Jul
10 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
18 – 25 May
16 Jun
3-4 wk
15 Jun
7 Jul
5 wk after
27 May
27 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
22 Apr – 6 May
26 Jun
4-6 wk
3 Jun
24 Jul
3 wk after
Lettuce
Lactuca sativa
7 – 14 Apr
13 Jul
3-4 wk
5 May
3 Aug
1 wk before
8 May
24 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
24 Mar – 7 Apr
26 Jun
4-6 wk
5 May
24 Jul
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
3 – 17 Apr
5 Jun
2-4 wk
1 May
19 Jun
2 wk before
1 May
9 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
8 May
19 Jun
1 wk before
8 May
9 Jun
1 wk before
Spinach
Spinacia oleracea
27 Mar – 3 Apr
28 Jul
3-4 wk
24 Apr
18 Aug
3 wk before
24 Apr
8 Aug
3 wk before
Sweet potato
Ipomoea batatas
15 – 29 Jun
4-6 wk
27 Jul
11 wk after
Garden tomato
Solanum lycopersicum
14 – 28 May
6-8 wk
9 Jul
8 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
11 – 25 Jun
20 Jun
2-4 wk
9 Jul
8 wk after
24 Jun
24 Jun
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
22 Apr – 6 May
26 Jun
4-6 wk
3 Jun
24 Jul
3 wk after
Garden pea
Pisum sativum
27 Mar – 3 Apr
28 Jun
3-4 wk
24 Apr
19 Jul
3 wk before
8 May
9 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 Jun
4-6 wk
20 Jul
10 wk after
Lemon balm
Melissa officinalis
5 – 19 Mar
24 May
8-10 wk
14 May
19 Jul
Vid frost
9 Jun
9 Jul
4 wk after
Dill
Anethum graveolens
8 May
29 Jul
1 wk before
Wild chives
Allium schoenoprasum
17 Feb – 3 Mar
7 Jun
6-8 wk
14 Apr
19 Jul
4 wk before
8 May
9 Jul
1 wk before
Spearmint
Mentha spicata
30 Jan – 27 Feb
24 May
8-12 wk
24 Apr
19 Jul
3 wk before
9 Jun
9 Jul
4 wk after
Coriander
Coriandrum sativum
27 May
8 Aug
2 wk after
Garden sage
Salvia officinalis
6 – 20 Apr
9 May
8-10 wk
15 Jun
4 Jul
5 wk after
Common thyme
Thymus vulgaris
25 Mar – 8 Apr
14 May
8-10 wk
3 Jun
9 Jul
3 wk after
Oregano
Origanum vulgare
28 Mar – 11 Apr
28 May
6-8 wk
23 May
9 Jul
1 wk after
9 Jun
29 Jun
4 wk after
Parsley
Petroselinum crispum
27 Feb – 13 Mar
28 May
6-8 wk
24 Apr
9 Jul
3 wk before
8 May
29 Jun
1 wk before
Rosemary
Salvia rosmarinus
9 Mar – 6 Apr
7 Apr
10-14 wk
15 Jun
16 Jun
5 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 Jun
3-4 wk
20 Jul
10 wk after
Cornflower
Centaurea cyanus
24 Apr
19 Jul
3 wk before
8 May
9 Jul
1 wk before
Statice
Limonium sinuatum
30 Apr – 14 May
8 May
8-10 wk
9 Jul
8 wk after
Sweet William
Dianthus barbatus
27 Feb – 13 Mar
6-8 wk
24 Apr
3 wk before
19 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
14 – 28 May
22 May
6-8 wk
9 Jul
8 wk after
27 Jul
11 wk after
Pinnate dahlia
Dahlia × pinnata
7 – 21 May
28 May
6-8 wk
2 Jul
9 Jul
7 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
14 Apr – 12 May
11 Jun
4-8 wk
9 Jun
9 Jul
4 wk after
9 Jun
29 Jun
4 wk after
Foxglove
Digitalis purpurea
13 – 27 Feb
8-10 wk
24 Apr
3 wk before
27 May
2 wk after
Busy lizzie
Impatiens walleriana
27 Apr – 25 May
30 Jun
8-12 wk
20 Jul
25 Aug
10 wk after
Creeping zinnia
Sanvitalia procumbens
14 – 28 May
1 Jun
6-8 wk
9 Jul
13 Jul
8 wk after
Hyacinth bean
Dolichos lablab
Season too short
28 May – 11 Jun
4-6 wk
9 Jul
8 wk after
Chinese lantern
Physalis alkekengi
6 – 20 Apr
24 Apr
8-10 wk
15 Jun
19 Jun
5 wk after
Love in a mist
Nigella damascena
8 May
24 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
14 – 28 May
6-8 wk
9 Jul
8 wk after
27 Jul
11 wk after
Purple-top vervain
Verbena bonariensis
23 Mar – 20 Apr
24 Apr
8-12 wk
15 Jun
19 Jun
5 wk after
Cardoon
Cynara cardunculus
Fleece
1 – 29 Apr
8-12 wk
24 Jun
6 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
16 Apr – 14 May
5 May
8-12 wk
9 Jul
8 wk after
Globe amaranth
Gomphrena globosa
Fleece
14 – 28 May
19 May
6-8 wk
9 Jul
8 wk after
Corn poppy
Papaver rhoeas
8 May
9 Jul
1 wk before
Snapdragon
Antirrhinum majus
10 Feb – 10 Mar
14 May
8-12 wk
5 May
9 Jul
1 wk before
19 May
29 Jun
1 wk after
Flossflower
Ageratum houstonianum
11 – 25 May
18 May
8-10 wk
20 Jul
10 wk after
Sweet pea
Lathyrus odoratus
27 Feb – 20 Mar
4 Jun
5-8 wk
24 Apr
9 Jul
3 wk before
Stock
Matthiola incana
10 – 24 Mar
7 Jun
6-8 wk
5 May
19 Jul
1 wk before
27 May
9 Jul
2 wk after
Wormwood
Artemisia absinthium
27 Feb – 13 Mar
8 May
6-8 wk
24 Apr
19 Jun
3 wk before
27 May
9 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
28 May – 11 Jun
28 May
4-6 wk
9 Jul
8 wk after
Garden pansy
Viola × wittrockiana
3 – 17 Feb
24 May
8-10 wk
14 Apr
19 Jul
4 wk before
19 May
9 Jul
1 wk after
Petunia
Petunia
16 Apr – 14 May
8 May
8-12 wk
9 Jul
8 wk after
Sweet Scabious
Scabiosa atropurpurea
20 Apr – 4 May
8 May
6-8 wk
15 Jun
19 Jun
5 wk after
24 Jun
6 wk after
Common zinnia
Zinnia elegans
28 May – 11 Jun
12 Jun
4-6 wk
9 Jul
10 Jul
8 wk after
Common morning glory
Ipomoea purpurea
15 – 29 Jun
3-5 wk
20 Jul
10 wk after
Garden cosmos
Cosmos bipinnatus
28 May – 11 Jun
11 Jun
4-6 wk
9 Jul
9 Jul
8 wk after
24 Jun
29 Jun
6 wk after
Scarlet milkweed
Asclepias curassavica
4 May – 1 Jun
19 May
8-12 wk
27 Jul
11 wk after
Bee balm
Monarda didyma
19 Feb – 19 Mar
24 Apr
8-12 wk
14 May
19 Jun
Vid frost
9 Jun
9 Jun
4 wk after
Yarrow
Achillea millefolium
27 Feb – 13 Mar
8 Apr
6-8 wk
24 Apr
20 May
3 wk before
27 May
2 wk after
Safflower
Carthamus tinctorius
24 Apr
19 Jun
3 wk before
8 May
9 Jun
1 wk before
Iceland poppy
Papaver nudicaule
17 Feb – 3 Mar
28 May
6-8 wk
14 Apr
9 Jul
4 wk before
1 May
29 Jun
2 wk before
Bishop's flower
Ammi majus
17 Apr – 1 May
11 Jun
4-6 wk
29 May
9 Jul
2 wk after
27 May
29 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Fleece
16 – 30 Apr
10-12 wk
9 Jul
8 wk after
Sunflower
Helianthus annuus
11 – 18 Jun
15 Jun
3-4 wk
9 Jul
8 wk after
9 Jun
26 Jun
4 wk after
China aster
Callistephus chinensis
14 – 28 May
4 Jun
6-8 wk
9 Jul
16 Jul
8 wk after
24 Jun
6 Jul
6 wk after
Annual phlox
Phlox drummondii
29 Apr – 13 May
1 Jun
6-8 wk
24 Jun
13 Jul
6 wk after
24 Jun
3 Jul
6 wk after
Hollyhock
Alcea rosea
27 Feb – 13 Mar
6-8 wk
24 Apr
3 wk before
27 May
2 wk after
Alpine delphinium
Delphinium elatum
11 Mar – 8 Apr
24 Apr
8-12 wk
3 Jun
19 Jun
3 wk after
9 Jun
9 Jun
4 wk after
African marigold
Tagetes erecta
14 – 28 May
1 Jun
6-8 wk
9 Jul
13 Jul
8 wk after
Black-eyed Susan
Rudbeckia hirta
20 Apr – 4 May
25 May
6-8 wk
15 Jun
6 Jul
5 wk after
24 Jun
26 Jun
6 wk after
Wood sage
Salvia nemorosa
14 – 28 Mar
14 Apr
8-10 wk
23 May
9 Jun
1 wk after
9 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
11 May – 8 Jun
13 May
6-10 wk
20 Jul
10 wk after
California goldenpoppy
Eschscholzia californica
8 May
9 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
30 Apr – 14 May
6 May
8-10 wk
9 Jul
8 wk after
Water forget-me-not
Myosotis scorpioides
27 Feb – 13 Mar
8 May
6-8 wk
24 Apr
19 Jun
3 wk before
27 May
9 Jun
2 wk after