In this comprehensive, 5000-word guide, we’ll cover everything you need to know to successfully grow Purple Urkle from seed to harvest—even if you’re a beginner. Whether you’re growing indoor, outdoor, in soil, or hydroponics, this guide is designed to help you produce top-shelf Purple Urkle buds every time.
Table of Contents
- What is Purple Urkle?
- Purple Urkle Genetics and Origins
- Purple Urkle Seed Characteristics
- Where to Buy Feminized Purple Urkle Seeds
- Ideal Climate and Growing Conditions
- Germination Tips for Purple Urkle Seeds
- Seedling and Vegetative Stage Tips
- Training Techniques for Bigger Yields
- Flowering Stage: When Purple Urkle Shows Her Colors
- Nutrients, Feeding, and pH for Purple Urkle
- Indoor vs. Outdoor Growing Tips
- Harvesting Purple Urkle: How to Know When She’s Ready
- Drying and Curing Purple Urkle Buds
- Common Growing Issues and How to Avoid Them
- Final Thoughts: Grow Purple Urkle Like a Pro
1. What is Purple Urkle?
Purple Urkle is a famous Indica-dominant cannabis strain known for its deeply relaxing effects, stunning purple appearance, and bold grape aroma. It has long been a staple in the West Coast cannabis scene, particularly in California, where its genetics were perfected.
Quick Strain Facts:
| Attribute | Details |
|---|---|
| Type | Indica-dominant (80% Indica / 20% Sativa) |
| THC | 18–22% |
| CBD | 0.1–0.5% |
| Flowering Time | 8–10 weeks |
| Yield | 400–500g/m² (indoor), 500–700g per plant (outdoor) |
| Flavors | Grape, berry, skunk |
| Effects | Relaxed, sleepy, euphoric, pain-relieving |
2. Purple Urkle Genetics and Origins
Purple Urkle is believed to descend from a phenotype of Mendocino Purps, a Northern California strain with strong purple traits and heavy body effects. As a landrace-inspired cultivar, its genetics have remained relatively stable over time.
Its strong Indica lineage makes Purple Urkle a nighttime strain, ideal for treating:
- Chronic pain
- Insomnia
- Anxiety
- Stress
- Muscle spasms
3. Purple Urkle Seed Characteristics
Before diving into how to grow Purple Urkle, it helps to understand what you’re working with when buying Purple Urkle seeds.
Types Available:
- Feminized Purple Urkle Seeds: Guaranteed to produce bud-bearing female plants.
- Autoflowering Purple Urkle Seeds: Combine Urkle genetics with Ruderalis for faster harvests.
- Regular Purple Urkle Seeds: Best for breeders interested in making new hybrids.
Seed Appearance:
- Color: Dark brown with light striping
- Size: Medium
- Shell: Hard and solid, no cracks
High-quality seeds will have a high germination rate, especially from trusted breeders and seed banks.
4. Where to Buy Feminized Purple Urkle Seeds
Looking for Purple Urkle seeds for sale? Always choose a reliable, well-reviewed seed bank to ensure authentic genetics.
Top-Rated Online Seed Banks:
| Seed Bank | Features |
|---|---|
| ILGM (I Love Growing Marijuana) | Free shipping, germination guarantee, U.S. support |
| Seedsman | Large selection, global shipping |
| Crop King Seeds | Autoflower and feminized options |
| Herbies Seeds | Stealth shipping, reward program |
| MSNL Seeds | Trusted UK-based breeder with Purple Urkle in stock |
Ensure your purchase is legal in your location, and always check for:
- Feminized options
- Germination guarantee
- Discreet shipping
5. Ideal Climate and Growing Conditions
Purple Urkle prefers a warm, dry, and sunny climate, similar to its California homeland.
Optimal Conditions:
| Factor | Range |
|---|---|
| Temperature | 70–85°F (21–29°C) |
| Humidity (veg) | 50–60% |
| Humidity (flower) | 40–45% |
| Light | 18/6 veg, 12/12 flower |
| Soil pH | 6.0–6.5 |
| Hydro pH | 5.8–6.2 |
Cooler nighttime temps (below 65°F) during flowering will help bring out the vivid purple hues that Purple Urkle is famous for.
6. Germination Tips for Purple Urkle Seeds
Starting strong is key to a successful grow.
Germination Steps:
- Soak seeds in distilled water for 12–18 hours.
- Transfer to moist paper towel, fold gently.
- Place in a ziplock bag or between plates.
- Store in a dark, warm place (75–85°F).
- Check daily for sprouting (usually within 2–4 days).
- Transplant once root emerges (~1 cm long).
7. Seedling and Vegetative Stage Tips
Once your Purple Urkle seedling sprouts its first true leaves, it enters the veg stage.
Key Tips:
- Use a low-nitrogen seedling soil or light mix.
- Keep humidity around 60% in early veg.
- Provide 18–24 hours of light per day.
- Avoid overwatering. Let the top 1″ of soil dry out before watering.
- Begin low-dose nutrients (N-rich) around week 2–3.
Watch for tight internodal spacing, a sign of healthy Urkle veg growth.
8. Training Techniques for Bigger Yields
Because Purple Urkle tends to grow bushy, it’s ideal for training to maximize light exposure.
Recommended Techniques:
- Topping: Increases lateral growth for more colas.
- LST (Low Stress Training): Gently bend and tie branches.
- ScrOG (Screen of Green): Train under a net for even canopy.
- Defoliation: Remove large fan leaves that block bud sites.
Proper training during veg leads to denser buds and higher yields in flower.
9. Flowering Stage: When Purple Urkle Shows Her Colors
Purple Urkle’s flowering stage is visually stunning. Expect deep purple buds, fiery orange pistils, and thick layers of frost.
Signs of Flowering:
- Pistils (white hairs) begin to form.
- Buds swell noticeably by week 4–5.
- Trichomes start to develop rapidly.
Flowering Timeline:
| Week | What Happens |
|---|---|
| 1–2 | Flower initiation, stretch begins |
| 3–5 | Buds form, trichomes begin |
| 6–8 | Buds swell, color intensifies |
| 9–10 | Trichomes mature, pistils darken |
Pro tip: Lower night temps (60–65°F) can enhance purple coloration.
10. Nutrients, Feeding, and pH for Purple Urkle
Purple Urkle responds well to a balanced feeding schedule but is sensitive to overfeeding.
Veg Stage:
- Nutrients: High nitrogen (N), moderate phosphorus (P), moderate potassium (K)
- Example Ratio: 4-2-3
Flowering Stage:
- Nutrients: Low nitrogen, high phosphorus and potassium
- Example Ratio: 1-4-5
Additional Tips:
- Use Cal-Mag during veg and early flower.
- Flush 10–14 days before harvest.
- Monitor pH closely to avoid nutrient lockout.
11. Indoor vs. Outdoor Growing Tips
Indoor Growing:
- Use full-spectrum LED or HPS lights.
- Maintain tight control over temperature and RH.
- Employ training (ScrOG or LST) for even canopy.
- Expect yields of 400–500g/m².
Outdoor Growing:
- Choose a sunny, dry area with ample airflow.
- Plant after the last frost.
- Harvest in late September to early October.
- Yields can exceed 600g per plant in optimal conditions.
12. Harvesting Purple Urkle: When to Cut
Knowing when to harvest is crucial to capture Urkle’s potency and flavor.
Signs of Readiness:
- 70–90% of pistils have darkened.
- Trichomes are mostly cloudy with some amber.
- Buds are firm, sticky, and aromatic.
Use a jewelers loupe to inspect trichomes. Cloudy trichomes = peak THC. Amber = more sedative effect.
13. Drying and Curing Purple Urkle Buds
Once harvested, proper drying and curing is essential for taste, potency, and smoothness.
Drying:
- Hang branches in a dark room at 60–70°F with 50% RH.
- Dry for 7–10 days, or until small stems snap.
Curing:
- Trim buds and place in glass jars.
- Store in a cool, dark place.
- Open jars daily for 10–15 minutes (“burping”) for 2 weeks.
- Cure for 3–6 weeks total.
Properly cured Purple Urkle will smell like grapes, berries, and skunk, with smooth, potent smoke.
14. Common Growing Issues and How to Avoid Them
🌿 Bud Rot:
- Caused by high humidity.
- Use fans, dehumidifiers, and proper spacing.
🌿 Nutrient Burn:
- Symptoms: Yellow/brown leaf tips.
- Solution: Flush and reduce feeding.
🌿 pH Imbalance:
- Leads to nutrient lockout.
- Keep soil pH between 6.0–6.5.
🌿 Mold:
- Urkle’s dense buds are mold-prone late in flower.
- Ensure airflow and humidity control.
15. Final Thoughts: Grow Purple Urkle Like a Pro
Growing Purple Urkle cannabis from seed is incredibly rewarding. With its vibrant color, grape aroma, and heavy Indica effects, it’s no surprise this strain remains a favorite among connoisseurs and cultivators.
By following these Purple Urkle cannabis seed growing tips, you can ensure a successful grow — from germination to harvest — and enjoy one of the most visually appealing and therapeutically effective strains available today.
Bonus: Quick Reference Growing Checklist
| Stage | Key Action |
|---|---|
| Germination | Paper towel method, 75–85°F |
| Seedling | Low light intensity, low nutrients |
| Veg | LST, topping, ScrOG; 18/6 light |
| Flower | Cooler nights, high P/K feeding |
| Harvest | Trichome inspection |
| Dry/Cure | 60°F, 50% RH, 2–6 week cure |
Call to Action: Buy Purple Urkle Seeds and Start Growing Today!
Ready to start your Purple Urkle grow? Don’t miss out on this legendary strain. Buy Purple Urkle cannabis seeds from a trusted seed bank and follow these proven growing tips to produce stunning, high-THC purple buds in your next harvest.

