Super Silver Haze Grow Diary and Strain Review

This indoor run with Super Silver Haze from Green House Seeds was partly a test for me. I knew this sativa-leaning hybrid could get big, so I didn’t want to let it grow freely and then panic later.

The plan was clear from the start: around 6 weeks of veg, active topping, and fairly serious LST before giving the plant about 10 weeks to flower. I had done light training before, but this was my first time combining topping with more aggressive bending.

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Super Silver Haze (Green House Seeds)

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Starting the Run

Grow Notes

I germinated the seed between wet cotton pads. While it was opening, I mixed the substrate: 15l (4gal) of basic universal soil, 5l (1.3gal) of worm humus, and 5l (1.3gal) of perlite. The mix came out light enough for strong root development, but still rich enough for the first part of veg.

Once the seed cracked, it went straight into the soil. The sprout appeared on day 4, and at first I watered only around the seedling with filtered water from a sprayer. No additives yet.

Week 1

The first week stayed very simple. The soil already had enough food for a tiny plant, so I didn’t see any reason to start feeding early.

I planted the seed off-center on purpose. That made it easier to bend the plant later, because I already knew LST would be part of the run from the beginning.

Week 2

More than 2 weeks had passed from germination, and Super Silver Haze was still growing well on plain water. That was a good sign. The plant didn’t look hungry, and the pace was better than I expected without bottled nutrients.

At this point, I was mostly waiting for enough structure to begin shaping. With this strain, I wanted to control the frame early instead of correcting a tall plant later.

Week 3

This was the first real training week. I started shaping the plant more deliberately and watched closely to see how it would react.

The reaction was clean. No real stress, no obvious slowdown. I still wasn’t using root feed, only a weekly foliar spray with Zircon or succinic acid, alternating between the two.

Veg Progress and Training

Week 4

LST and defoliation continued this week. I did the bending only when the soil had dried out a bit, usually about a day before watering. The stems were less full of water then, so they bent instead of snapping.

After training, I raised the humidity, lifted the lights a little, and gave a foliar spray with either Zircon or succinic acid. That helped the plant bounce back faster. The only thing I had to remember was lowering the lights again the next day.

Week 5

By day 34 from sprout, I finally started feeding. The first dose was very light: Long Flowering 18-12-18 at 0.3ml/l.

I treated it as an introduction rather than a full feed. The plant had been doing fine without extra nutrition, so there was no reason to push hard just because the bottle existed.

Week 6

This was the last part of veg. The plant had the structure I wanted, and the 6-week plan was still holding together.

I raised Long Flowering to 0.4ml/l this week, and the reaction looked good. No burn, no strange leaf behavior, and no reason to change direction before the flip.

The Flip and Early Flower

Week 7

One week after switching to a short light schedule, the plant started flowering. The pace looked strong, and I expected proper little budlets within a few more days.

I still kept the feeding modest, around half of the recommended dose or even a little less. That was enough for now, and I didn’t want to overdo it during the transition.

Week 8

Full flowering started about 10 days after the flip, which felt quick. I gave the plant one last light stretch with LST and then decided to leave the structure alone until harvest.

The fertilizer dose stayed where it was. The plant looked healthy, so I didn’t see a real reason to increase anything yet.

Week 9

This week was hot and stuffy in the room, and I couldn’t really dial the heat down. It wasn’t ideal, but the plant handled it better than I expected.

Growth and flower development continued without drama. The leaves still had a healthy shine, so I raised Long Flowering to 0.5ml/l and left the rest alone.

Week 10

The room became easier to manage, with the tent sitting around 27°C (80.6°F). That took some pressure off the grow.

I did feel tempted to raise the feed again, but the plant gave me no reason to do it. Sometimes the hardest part is not adjusting things just because you want to be busy.

Week 11

The buds were moving in the right direction now. They gained size, started to smell, and resin was finally easy to see.

I raised Long Flowering slightly to 0.6ml/l. The plan after that was to add a PK booster the following week, but still without turning the feed schedule into a heavy push.

Late Flower and Finish

Week 12

This week I added PK+ 0-30-27 at 0.2ml/l and reduced Long Flowering to 0.4ml/l. There still wasn’t much to fix. The plant was just drinking, eating lightly, and stacking flowers.

The smell in the box was pleasant. I expected more citrus from Super Silver Haze, but what I got was closer to a light honey-floral mix.

Week 13

By the end of the seventh flowering week, the plant was drinking a lot but still didn’t smell too strongly. Honestly, I didn’t mind that part.

The flowers kept developing at a steady pace. Nothing looked rushed, and I had no reason to force the finish.

Week 14

I lowered the base feed again to 0.3ml/l and raised PK+ to 0.3ml/l. After that, I switched to plain water only.

I also decided to cut 6 fat branches earlier than the rest of the plant. The idea was to compare a harvest taken mostly cloudy with the later buds, which I wanted to leave until there was much more amber.

Week 15-16

The final part of the grow was calm. The early branches came down first, and the rest of the plant stayed alive long enough to ripen further.

In total, the run took 111 days. I didn’t use Ripen and didn’t put the plant into a dark period before harvest. After such a smooth cycle, I didn’t feel like adding extra steps at the end.

Super Silver Haze Yield and Final Thoughts

This grow taught me a lot. It was my first time combining topping with LST in this way, and the result made me much more confident about using both methods together.

Super Silver Haze turned out easier than I expected. It handled training well, didn’t stall after the work, and stayed healthy through a long indoor cycle. The final dry yield was 180g (6.3oz).

The buds had serious strength behind them. The grower impression from this run was simple: the plant was productive, forgiving, and much less fussy than its sativa-heavy reputation might suggest.

Looking back, I’d grow it again with the same basic approach. The main thing is to start controlling the shape early, because this plant clearly has enough energy to take over a small indoor space if you let it.

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