Advice for a newbie
Cut down most of the prickly thorny blackberry bushes in the back garden and freed about 10x1m on one side. Out of this area, about 1x1m must have been used as a herb garden by a previous owner with about 2 layers of bricks showing above the ground with a few mint plants here and there and the rest invaded by blackberry bushes and their stubborn roots. The remaining (9x1m) was occupied by the blackberries.
Would like to use this area for growing herbs and have already ordered some seeds from Haddon's via amazon:
thyme, oregano, sage, mint, basil, coriander, chives,
radish (French breakfast),
Scotch Bonnet chillies
But I am a total newbie and wonder:
Q1. We live in East London. Is it too late in the year to start growing from seed (3rd July now)?
Q2. I don't know anything about soil. When it is dry the area looks dull and grey; when it has rained it looks dark (blackish). Should I add some fertiliser before starting? If so, what do I buy?
Q3. The area outside the herb enclosure square (9x1m) is fairly shallow, about 5cm (2inches). Is that deep enough for growing herbs? Inside the herb enclosure the depth is more than 15cm. I guess this will be enough.
Q4. would any of the herbs and plants above have any chance to produce a harvest this year?
Hints for a newbie would be most welcome.