Saturday, 27 October 2007

Grow Broad Beans from seed

Aquadulce Claudia and The Sutton
Can be sown in NOVEMBER for a crop which will be ready for harvesting in JUNE. There can however be problems if the winter is severe, so if you want an early crop, it may be better to sow under cloches in FEBRUARY. Although it may be that autumn sowing avoids the dreaded blackfly.
Other varieties are normally sown from the beginning of MARCH, and then succussionally at 4 week interval until the end of MAY. This should providea crop from late JUNE until early SEPTEMBER, and possibly up to OCTOBER.

SOIL
Broad Beans prefer a rich, well drained soil, but good results can be achieved if the soil is neither waterlogged or to acid, regardless of type. If necessary soil can have LIME added in winter
Do not grow your broad beans where beans have been grown in the previous year. Pick a reasonably sunny spot, and dig in the autumn adding compost or well rotted manure if necessary. Lime in winter, and 1 week before sowing, rake in a general purpose fertiliser.
SOWING
Firstly, avoid sowing seed with small holes in.
Mark out 2 rows, 8" apart, and with a dibber, make holes every 8", and 2" deep, staggering in each side of the double row. Drop 1 or 2 seeds in each hole, and cover with soil.
If another double row is to be sown, leave a 24" gap between each set of double rows, and so on. This is also done for successional sowings.
PLANT CARE
Regular hoeing will be needed to eliminate weeds during early growth, but not much watering will be necessary (unless the weather is exceptionally dry) before the flowers appear.
However, if the weather is very dry when the pods start growing, then regular (and lots of) watering will be necessary
For the taller varieties (ie not dwarf), it would be best to provide support for each double row. Place stout stakes at each corner of the double row,(and midway along if the row is long) and tie strings around them at 10-12" intervals vertically.
As soon as the first pods appear (at which time there should be 4 trusses of flowers), pich out the top 3-4" of the stem. This should give an earlier harvest, and hopefully provide somecontrol over blackfly.
If blackfly do become a problem, then you must spray (whatever your method of insect control)to keep the infestation under control.
When cropping is over, dig the plants i to provide extra green manuring.
HARVESTING
I you like the whole pods cooked, then start picking when they are about 2-3" long.
For shelling beans, they are ready when the beans separate from the pod and have a green/white scar. If the scar is black, the bean will be tough.
SOME FACTS
Seeds should germinate in 7-14 days
4 ounces of seed shoud be enough for a 20 foot double row
This is around 60 seeds
From an autumn sowing expect around 26 weeks to harvest
From spring sowings expect around 14 weeks from each sowing to harvest
You could expect to get atround 40 pounds of pods from a 20 foot double row.

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