Grow Number 10

August 28 - October 30, 2014

Holy Grail Kush (Sativa dominant hybrid)


NOTEAll activity for each grow will now be tracked and recorded in the opening table. Occasionally an item is linked indicating additional text or pictures. The first six grow logs contained a considerable but necessary amount of anecdotal material but now that the grows are using a standardized procedure to produce a perpetual harvest (see below) only the basic vital statistics and stage of growth pictures need to be updated.

ACTIVITY and Feeding Log
Flipped lights. Began BioThrive Bloom

1st Flower





Day 30



All organic - no flushing needed






Hang dry until 25% of wet weight,  trim, cure in
glass jars with Boveda 62% humidity packs for 30 days minimum.

Perpetual Harvest:  Namaste Indoor Gardens consists of two separate growing areas: (1) the original area now dedicated exclusively to germination and vegetation under 112 watts vertical CFL with a supplemental 200 watt overhead CFL and (2) a  24" x 24" x 72" closet specifically repurposed for flowering under 250 watts HPS (high pressure sodium).

The vegetation area has two shelves. Two new plants are introduced every 30 days and placed on the lower shelf bumping any existing plants to the top shelf. After these new plants grow a total of 7 - 9 nodes and are around 6-8 inches tall they are topped to increase bushiness and begin low stress training (LST) . After a total of 30 or 60 days of vegetation and training they are moved to the closet where the lights are on a timer set for 12 hours on/12 hours off every 24 hours. This change in the photo period is what triggers the flowering cycle. After 60 days of flowering the two plants are ready for harvest.

This insures a harvest of two mature plants with a yield of at least an ounce and possibly more every 30 days. The California medical marijuana license allows for 6 mature (flowering) plants and 8 ounces of dried flowers.
This is considered an adequate amount for most patients.

August 28th: Week 1

Picked up a 17" Holy Grail Kush clone in a 1 gallon container. Transplanted it to a 2 gallon nursery pot and began LST to open up and spread out the canopy. The free hanging weights stimulates the plant into strengthening its limbs making for branches that carry more and heavier buds.  I also 'super cropped' several of the top nodes to train them out and downwards. This is done by pinching the branch until it droops. It will regrow with a knuckle and a stronger limb as well. This will be the tallest plant (13 nodes) that I have put to flower.

Currently it is in the vegetation chamber under a 125 watt CFL top light with 112 watts of T5 side lighting - both sets of lights in the soft white (2700K) spectrum except for 2 of the T5's left in the daylight (6500K) spectrum to assist in non flower growth.

This strain is reputed to be very aromatic ('stinky') and so will be transferred to the flowering chamber under HPS for the last 30 days of flowering. A plant this tall should easily be able to produce an ounce or more. If this is successful I will purchase more of these 'teen' plants which have already vegetated for 30 days or more and can be flipped immediately. The flowering chamber can accommodate at least 3 plants this size. Even though they cost twice the amount of the smaller 6-8" clones there is a savings of at least 30 days of 24 hour electrical charges incurred during vegetation.

September 6th: Week 2 (First flower)


Decided to combine all 5 plants (Grows 8,9,10) in the flowering chamber and lowered the shelf so that the Holy Grail is 8" below the lights.  The other plants were set on top of #2 nursery pots bringing the Diamond OG clones within 8 inches as well and the shorter Bubba Kush clones are at 10 inches.

I still haven't found the authoritative answer as to height under HPS bulbs - Wikipedia says "Often, the distance between lamp and plant is in the range of 0.6 m (2 ft) with high pressure sodium lamps, to 10 cm (4 in) with other lamps, such as compact, large and high output fluorescent lamps".

Most of the pictures of online grows show a similar distance but many commenters say that 8-12" is acceptable with the smaller 250 watt HPS. They will be left at this height but carefully observed for leaf burn or light bleaching.

 September 13th: Week 3 (Flowering)

Plant is in full flower with a total of 30 or more bud sites averaging 3 per branch.  It's obvious this was not one of the short and stocky Kushes and perhaps stretched more than necessary during the vegetative stage before I obtained it because internode spacing is over 2 inches.

The plant is continuing to be festooned with metal fence ties weighing down the branches as a form of weight resistance training - with each flex of the branches in response to the oscillating fan they grow stronger and will better be able to support their future heavy buds. Depending on how heavy those buds are additional support stakes may be needed as well.

September 20th: Week 4 (Flowering)

Holy Grail Kush flower at 23 days. Many new pistils in just the last couple of days as the flowers start to build and stack their calyxes (ovaries) - there are two pistils per calyx which are the external pollen receptors.

In this image I boosted the contrast to show the light dusting of trichomes (resin glands) which contain the psychoactive properties of the plant and serve to protect the leaf surface from desiccation and insect damage.

September 27th: Week 5 (Flowering)

Decided that this plant was too crowded on the shelf among the other plants in the flowering chamber so moved it back to the (modified) vegetation chamber under 200 watts CFL overhead and 112 watts T5 vertical side lighting - all in the 2700K flowering spectrum.

The overhead bulb outputs 12,000 lumens boosting the total in the grow room, when combined with the 10,800 lumens from the vertical T5HO lights to a total of  22,800 lumens. This is only 4700 fewer lumens than in the flowering chamber with its 250 watt HPS bulb. The side lighting is especially useful with a tall plant as is this one.

The flowers are really starting to elongate with multiple stacking calyxes and abundant pistils. I expect they will put on most of their growth during the next two weeks and should become quite aromatic. This is the largest plant I've grown so far and part of the relocation impetus was a desire to observe it more closely.

9-28: I was wondering this morning why this 'indica' cross was so lanky and found the answer:

"Known Phenotypes:
1.: short, compact, fastly blossoming, indica-dominant Phenotype #2
2.: long, stretched, slowly blossoming, sativa-dominant Phenotype #1"

It's obvious that this plant is the sativa dominant Phenotype #1 which also means that it is definitely not an early flowering variety maturing during the 9th or 10th week or possibly even later. Could be that its effects are more sativa like as well i.e. cerebral versus somatic.


Here is an image of the developing calyxes and pistils - notice about 30% of the pistils have begun to mature and darken.  The trichomes are still quite immature and appear as a light dusting on the flowers and leaves.


Found this article on the advisability of removing most of the fan leaf after the 4th week of flowering on Kush strains. The claim is that the plant no longer needs them and they would have dropped off in nature by that time. Retaining them only drains nutrients better directed towards building flowers than leaf at that stage. The plant's nutrient needs can be met by the fully developed root system unlike a plant still in the vegetative stage.

Accordingly all the current plants, being Kushes, were "stripped to sticks with just a few fan leaves, but with all of the budding sites intact" as the article suggests. Added inverted paper plates as container covers to help retain soil moisture and reflect light up to underside of plants.

October 4th: Week 6 (Flowering)

Currently in the middle of a heat wave with outside temperatures in the 80's to 90's through the weekend. Shifted all plants to the vegetation chamber and installed the A/C in the flowering chamber using the exhaust fan to vent the extra heat. Since the two chambers are on opposite sides of a  common hallway the doors between them are left open during the day making, in effect, one contiguous chamber.

10:00 am: Inside grow room temps over 86 already  and the A/C can no longer could keep up. All plants moved to the front of the coach under the surround windows and overhead fan which is just as acceptable and quite a bit more energy efficient.

With another fan and the outside door open plus a little cross ventilation the temps are 84F. This is their first exposure to direct sunlight ... will have to get a good light meter to see if the lumination equals that of the grow chambers.

Certainly there is enough light to carry the plants through the next couple of days.

October 11th: Week 7 (Flowering)

All of the plants have had 6-7 hours of natural sunlight daily for the past week and the plants seemed to thrive in it - new growth and pistils on the growing tips with an obvious swelling of the buds. On this Holy Grail Kush eight of its colas are over 2 inches tall by an inch wide.  Great progress with still a month to go. I'm encouraged.

Last week the topmost branch (on the right) was partially split and immediately taped back together with no apparent ill effects.

October 18th: Week 8 (Flowering)

Added a 4" inline inlet fan to the flowering chamber to bring in cooler outside air using a cut down gym sock over the inlet side duct to filter out insects, dust and light.  

This unit was inexpensive and doesn't produce a lot of air movement ...40 CFM with a maxim boost of 80 CFM using an optional temperature activated switch which was also ordered but hasn't arrived yet.

The fan can be replaced by a more powerful fan if need be. 

October 25th: Week 9 (Flowering)

This image, taken on day 62, shows fully developed and resin filled trichomes just beginning to display a touch of amber which indicates that the flowers are approaching peak maturity and will be ready for harvest on Friday.

The lowest third of the plant has only very small 'popcorn' buds which I may leave on after the top buds are harvested in order to grow a bit larger. Or, given the sturdy branches and root structure, it may be possible to revegetate the plant by reverting to a 24/7 photo period which would allow cloning of any new shoots.

October 30th: Harvest

Checked the trichomes again this morning and discovered more amber colored trichomes than I had originally seen. Given that rain with its high humidity is forecasted for tomorrow I thought it best to harvest today.

 The total untrimmed wet weight was 53 grams which should result in a net harvest, dried and cured, of just about 1/2 ounce.

The flowers were placed loosely in a brown paper bag with a Boveda humidity pack to keep the drying environment at the desired 62%. They should be ready for the final trim and jar cure in about 5-7 days.

10-31:  Down to 38 grams or 71% of the original wet weight.

11-1:  Down to 30 grams or 56% of the original wet weight.

11-2:  Down to 25 grams or 47%.

11-3:  Down to 20 grams or 38%.

November 4th: Curing

Down to 16 grams or 30%. Buds are fluffy rather than dense. Went ahead and did the final trimming. This amount dried is approximately 13 grams of flowers and 3 grams of trim. The cure will take place in small Bell jars with Boveda humidity packs. One jar with 8 grams will be stored in a humidor along with jars from previous harvests as a reference sample and the balance will be added to the medicine chest.

Revegetation: The Mother plant

The plant was left with several branches and flowers and will be placed in the vegetation chamber in an attempt to trigger it into revegetatation. It was repotted with new soil and dusted with rooting powder.

The lights will be replaced by 6500K spectrum vegetation bulbs and the photo period will be reset to 18/6 ... one source says it's best to give intensely vegetated plants at least 4 hours of darkness to prevent a decline in vitality.

If the 'restart' attempt is successful then the plant will be allowed to vegetate for another 60 days before it is forced into reflowering. During this time a number of the emerging shoots will be taken off this new  'mother plant' and put into grow cubes as clones. These clones will eventually be grown out and harvested just as their parent was.

I have read that a 'mother' plant can be put through several cycles of harvest and revegetation without losing its potency and vigor. Since it already has a well established root structure the revegetated plant will be somewhat larger and can support more flowering sites.

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