Curious,
Do you intend to flower the seed plants or cuttings from them?
If you intend to flower seed plants then bear in mind that Haze phenos flowered from seed tend to stretch significantly.
Having said that, I almost never flower a seedling younger than 5 weeks old. They just don't seem ready for flowering. (I find a 4 week old seedling often takes an extra 4 or 5 days to start flowering compared to a 5 week seedling - and 5 days vegging under a HPS can be a lot of stretch! Thus giving you more or less the same size plant anyway...)
There is only 25% Haze in the Angel Heart but there will still be some very Hazey (thus very stretchy) plants in there. I presume the same will be true of ASH as well (although the Afghan genes should limit that a bit..)
My tip when looking for a Haze mother (which you are...) is to grow your seeds up and NOT FLOWER THEM. Keep these seed plants as your mothers. As soon as you can, take cuttings from them (keep them well labelled).
When these cuttings are rooted veg them for just 1 week then put them into the flowering room.
This process only adds two weeks to your overall grow-time, (presuming you would veg your seedlings for 5 weeks anyway,) as you can easily take a cutting from a 5 week old seedling, it takes 1 extra week to root the cuttings and 1 extra week to veg them.
The males will soon show their sex. Cull them along with their corresponding seed plant mothers. This should only take a further week. This means that you only need to grow the extra male seed plants for 3 weeks longer than you would have anyway, before dumping them - which isn't the end of the world!
Now you will find 3 important things :
1) your cuttings will come into flower much quicker than your seedlings would have AND need MUCH less vegging time, as they are already mature(1 week veg compared to 5.) This combination leads you to having MUCH smaller flowering plants - a REAL bonus to most indoor growers where the HAZE phenos are concerned
2) you can judge phenotypic variation between cuttings as opposed to between their seed plant mothers. This is important as it is cuttings and NOT seed plants that you will be flowering over and over again.
3) the mother(s) you eventually choose to go with will be seed plants and not cuttings, thus giving you the healthiest possible genetics to take your cutting 'copies' from time after time after time (hopefully.) Although I would think that strong genetics like MNS should be able to withstand many generations of cloning, I would still adhere to best practise in this instance. A mother plant should be given the best possible treatment and respect as possible, at all times...
What you eventually decide to do will depend on how much space you have in your flowering room, how much vertical height you have in your flowering room, how much space you have in your vegging room, how much time you have got, how attentive a grower you are, how long you intend to keep your mothers for and - at the end of the day - how bothered you are!!
Successful growing is often about making the right decisions, based on your own situation and everybody has a different situation! What may work for one person often doesn't for another. No-one can really tell you what the right thing to do is with this BUT as long as you have all the information you need you should be able to make the right choice yourself....
Good Luck
GS
