Early light stress kept Theia’s Purple Urkle smaller than intended, but it still finished with dense, resinous flowers and a grape-and-floral aroma.
The week 14 harvest recorded one plant and a wet yield of 219 grams per plant.
Theia had grown this WeedSeedsExpress strain before and returned to it as a personal favourite.
This run followed a slower path: hesitant vegetative growth, a compact start to flowering and, eventually, foliage that darkened towards black-purple.
Ready to grow this strain? Buy Purple Urkle seeds here at WeedSeedsExpress.
Grow Setup
| Parameter | Details |
|---|---|
| Strain | Purple Urkle seeds by WeedSeedsExpress |
| Grower | Theia |
| Environment | Indoor, with separate vegetative and flowering spaces |
| Medium | Soil and perlite; Plagron light mix used for the seedling |
| Harvested plants | 1 Purple Urkle |
| Lighting | Invisible Sun LED ISH B 60, 75W, for vegetation; two ISH X 240W fixtures listed for flowering |
| Light schedule | 24 hours in week 1, 18 hours in weeks 2–5 and 12 hours from week 6 |
| Finishing pot | 5 liters |
| Recorded air temperatures | Day: 21 °C–22 °C; night: 20 °C |
| Nutrients and supplements | Green Buzz Nutrients, including Humic Acid Plus, More Roots, Growzyme, Organic Grow Liquid, Organic Bloom Liquid, Big Fruits and Organic More PK; NPK Industries RAW Humic Acid |
| Training | Topping in week 5; main-lining recorded in week 8 |
Grow Diary
Week 0 — Germination
Theia soaked the seed for about 12 hours in a humic-acid solution at pH 6.2 and 22 °C. It then went into a paper towel moistened with the same mix, kept in a dark cupboard at 23 °C until a taproot appeared.
Week 1–2 — Vegetation: a small start
The first update reported a taproot after two days. Once it reached 1 cm, Theia planted the seed in a small pot of Plagron light mix. The seed had already been in the grower’s possession for three years.
Height increased from 4 cm in week 1 to 5 cm in week 2. It was smaller than the other plants in the tent, and Theia suspected the light mix was too nutrient-rich for its start.
By week 2, it was in a 1-liter pot, receiving water and beneficial supplements rather than added NPK fertilizer.
Week 3–4 — Vegetation: slow progress
The plant reached 8 cm in week 3 and 11 cm in week 4. Theia suspected its central position under the light had been too intense and also questioned the planting depth after repotting.
These were the grower’s explanations for the slow growth, rather than confirmed diagnoses.
Daily foliar spraying and feeds as needed continued in week 3. By week 4, Theia was still using beneficial liquids without added NPK and expected the plant to need more vegetative time.
Week 5 — Vegetation: topping and preparation
Theia topped the plant and set aside the week for recovery and a move into a 5-liter finishing pot. A little grow nutrient was introduced ahead of flowering.
The grower would have preferred another two weeks of vegetation, but the schedule for the next run meant flowering needed to begin sooner.
Week 6 — Flowering: a cramped transition
The light schedule changed to 12 hours, and the plant measured 21 cm. After being away for a couple of days, Theia found very tight internode spacing and signs of light burn on some upper fan leaves.
The grower attributed the stunting to having the light too close after transplanting.
The plant moved into the flowering room, with bloom feeding planned for the next feed. Theia also recorded input pH of 6.8 and runoff at 5.8, raising concerns about the medium’s buffering and possible nutrient lockout.
Week 7–8 — Flowering: growth picks up
By week 7, Theia described the plant as bouncing back into a small bush. Height reached 33 cm, followed by 41 cm in week 8.
Light nitrogen feeding and beneficial supplements continued while the grower monitored runoff and nutrient strength.
In week 8, flower sites were showing clearly. Theia was pleased with the stretch after the early setback, and main-lining was recorded in this update.
Week 9 — Flowering: clearing the lowers
At 49 cm, the plant had established flower sites. Theia cleared the lower growth and moved it to a position with better light and airflow.
Bloom feeding was around EC 1.4 every other feed. Additional PK was planned once the flowers were more established.
Week 10–11 — Flowering: purple begins to show
Height rose from 55 cm to 59 cm. Some older foliage yellowed, which Theia attributed to being light on nitrogen during the stretch. Purple colour was also beginning to develop in the leaves.
Week 10 feeding reached EC 1.7 with additional PK, compared with around EC 1.4 for bloom-only feeds and 0.7 for feeds without NPK. UVA exposure had reached two 30-minute sessions, with no burn observed at that point.
By week 11, the purple fade was progressing and the plant needed feeding every two days. Theia remained pleased with its development despite the difficult vegetative start.
Week 12–13 — Flowering: dark colour and dense flowers
Week 12 recorded a height of 63 cm. Theia described the flowers gaining weight while the foliage darkened towards black-purple, contrasting with yellow leaves.
In week 13, the flowers were described as fat, dense and heavily frosted, with a grape-sherbet smell and a bud shape that reminded the grower of Kush.
A runoff EC reading of 1.8 prompted Theia to plan another water-only feed instead of the next NPK feed.
Week 14 — Harvest
Theia watered before cutting, intending to retain some moisture for the hanging period rather than let the flowers dry too quickly.
At the harvest update, the plant had been cut the previous day and was hanging, with drying expected to take a week to ten days.
The final aroma description was simple and specific: grapes and flowers. The harvest entry recorded 93 days and one plant.
Detailed Observations & Grower's Reflections
Theia’s main distinction was between plant size and flower quality. Early stunting limited the return, but the grower still praised the resinous flowers and gave Purple Urkle 9/10.
The appearance changed noticeably late in flowering: purple emerged around week 10 and deepened towards black-purple by week 12.
The late-flower grape-sherbet aroma became a grape-and-floral description at harvest.
Challenges & Solutions
Excessive early light was the central setback in Theia’s account. The grower reported tight internodes and upper-leaf burn, then moved the plant into the flowering room.
Subsequent updates documented renewed growth and established flower sites, although Theia continued to regard the smaller final size as a consequence of the vegetative stress.
Runoff readings also influenced feeding decisions throughout flowering. Theia used lighter feeds and beneficial supplements at points, and planned water-only feeding after the week 13 EC reading.
The diary does not establish that every runoff concern was resolved.
Final Result and Strain Review
This was a modest-sized plant that Theia valued for its flowers rather than its volume. The final review called it easy to grow overall, while noting greater sensitivity to light early on compared with some other strains.
| Metric | Result |
|---|---|
| Harvest entry | Week 14 |
| Harvested plants | 1 |
| Wet bud yield per plant | 219 grams per plant |
| Recorded duration | 93 days |
| Grower’s strain rating | 9/10 |
| Grower’s difficulty rating | Easy |
Theia’s run ended with dense, resinous flowers, dark purple foliage and a grape-and-floral aroma. To explore the same strain, take a look at Purple Urkle seeds from WeedSeedsExpress.
