Question about Flowering Stage

[dougefresh]

I have had my plants in flowering stage for about 2 and half weeks now and they all have buds and alot of white pistles on them, but on most the big fan leaves they are begingin to yellow or already are yellow...is this natural due to it ending its life cycle or no??

[faithless]

Sounds a little early, but thats strain dependent. But its natural, the leaves yellow as all the energy and food gets used for flowers.

[TheGreenFog]

Sounds too early. Are you using bloom ferts? Maybe it's deficient in something...?

TGF

[J3FF]

dougefresh,
Same here man...Im about 17 days into flower and some of my fan leaves are yellowing a bit also. Not exactly sure but im guessing its due to insufficient light on some of the lower parts of the plant. Good luck man, let us know how it turns out and I shall do the same. =)
J3FF

[santacruz_organic]

i am having the same problem as well and im in 3rd week flower. i am going to buy some micronutrients aka secondary nutrients tomarrow.

[bejay]

its a nitrogen defficiency and while a little yellowing very late in flowering is considered ok by many it is not natural for the plant to have yellowing leaves even at the end of flowering.
either your not feeding your plant anything, or your feeding it a bloom fertilizer that doesnt have sufficient nitrogen and many start it to early often when they switch to 12/12, its actually better to not start a bloom fertilizer until 2-3 weeks into flowering.
if your having yellowing problems early in flowering should probably read the link below.
http://www.drugs-forum.com/growfaq/1231.htm

[BlueBear]

a"its a nitrogen deficiency and while a little yellowing very late in flowering is considered ok by many it is not natural for the plant to have yellowing
leaves even at the end of flowering."
You want allot of yellowing towards the end of flowering because it is a sign that the chlorophyll is being used by the plant and if it is still green at the end of flower then the buds have not been able to reach their max potential and you will have a bunch of chlorophyll in the buds and they will take longer to dry and can be more susceptible to mold during the drying process and put off an ammonia smell during the curing process.
2 weeks is a little early, but perhaps when in veg you didn't have enough N. You should feed plants veg nutes up until the first 7 to 10 days of flower, 12-12 because the plant hasn't transitioned over from the flower cycle and is still in veg mode and the veg nutes will help it pack on the needed N for flower. By the end of flower you want about 70 to 85 percent yellowing also known as necrosis.
Adieu

[Perp]

its a nitrogen defficiency and while a little yellowing very late in flowering is considered ok by many it is not natural for the plant to have yellowing leaves even at the end of flowering.
either your not feeding your plant anything, or your feeding it a bloom fertilizer that doesnt have sufficient nitrogen and many start it to early often when they switch to 12/12, its actually better to not start a bloom fertilizer until 2-3 weeks into flowering.
if your having yellowing problems early in flowering should probably read the link below.
http://www.drugs-forum.com/growfaq/1231.htm

I agree with this. Here is that link for those of you who did not read it. (My emphasis)


A common mistake for growers when they reach the flowering stage is to start hitting the plants with a high P fert like 10-60-10, continuing to use this blend exclusively, and when their plants start experiencing a deficit of N or micros as reflected by the dropping of lower leaves and chlorosis, they wonder why. Plants flower as a response to long nights, not because of fert blends high in P. A ratio of 10-60-10 is WAY to high in P. The plant will only take what it needs and compete for other elements that may be more important at the time.

You may have heard that too much N can inhibit flowering. No question about it, exclusive use of a plant food that is rich in N such as blood meal, a 5-1-1 blend, or ammonium nitrate may inhibit flowering especially if the phosphorous level is low, but most balanced blends have sufficient amount of P to do the job. Manufacturers/horticulturists will give you element analysis and what effect the elements have on plant growth, but remember this does not necessarily mean you will get better yields. Using a high P fert exclusively during flowering can actually work against you. It's an abundant amount of healthy leaves going into 12/12 that produce a lot of bud, not high P ferts.

I rotate fert blends as the plant *requires* them, not because it is "the thing to do." For example, when your plants are going thru the stretch phase during early flowering, they may need more N, especially if you're getting some yellowing in the lower/mid leaves. Give up the cannabis paradigms, and give them what they need. Go back to mild high P fert when the stretch ends, maintaining the foliage in a healthy state of growth until harvest for maximum yields. A 1-3-2 blend such as Peter's Pro Blossom Booster, 10-30-20, is one of the best flowering blends on the market because of several factors - it is higher in nitrate N and Mg. It is sold under the Jack's Classic label. An added benefit of Peter's blends is their use of high quality, very pure salts that will cut down on root burn.

[bejay]

there is different opinions on this and probably always will be but do you really think your buds is reaching max potential when the plant is starving and slowly dying because it cant get the nutrients it needs to grow well, not a chance, havent had any longer drying times or problems with mold or amonia smell either.

[faithless]

Yeah, sounds too early. What npk are you giving her now?