PINK / WHITE PAMPAS GRASS SEEDS
Growing & Care Guide.
QUICK FACTS
Botanical type: Pampas Grass (Cortaderia selloana)
Light: Full sun preferred (partial shade is OK)
Germination: 10–21 days (may take up to 4–6 weeks)
Bloom time: Usually 1–2 years from seed
Height/Spread: 5–10 ft (1.5–3 m) tall and wide
Soil: Well-draining, sandy/loamy soil
Water: Moderate until established, drought-tolerant after
1) WHEN TO PLANT
Indoors (recommended): Start seeds 8–10 weeks before your last frost.
Outdoors: Sow in spring after frost danger has passed.
2) HOW TO START SEEDS INDOORS
You will need a seed tray or small pots, seed-starting mix, water sprayer, and bright light.
Fill tray/pots with moist, light seed mix (not soggy).
Surface sow seeds on top of soil. Pampas seeds need light to germinate.
Do not bury deeply.
Optional: dust with a very thin layer of soil/vermiculite.
Mist gently to settle seeds.
Cover with a clear lid/plastic wrap (keep humidity high).
Place in a warm, bright spot:
Temperature: 68–77°F (20–25°C)
Light: 12–16 hours/day (sunny window or grow light)
Keep soil evenly moist by misting or bottom watering.
Tip: If mold/algae appears, remove cover for a few hours daily for airflow.
3) TRANSPLANTING SEEDLINGS
When seedlings have 2–3 true leaves:
Move into individual pots with well-draining potting soil.
Water when the top 1 in (2–3 cm) of soil feels dry.
Feed lightly every 2–3 weeks with half-strength balanced fertilizer.
4) HARDENING OFF & PLANTING OUTDOORS
After last frost and when nights stay above 50°F (10°C):
Hardening off (7–10 days):
Gradually increase outdoor time and sun exposure each day.
Planting steps:
Choose a full-sun, well-drained location.
Dig a hole twice the pot width. Plant at the same soil level.
Space plants 3–6 ft (1–2 m) apart.
Water deeply after planting.
5) CARE AFTER PLANTING
Light:
Full sun (6–8 hrs/day) gives best growth and plumes.
Water:
First 2–3 months: water deeply 1–2 times/week.
After established: water only during long dry spells.
Avoid waterlogged soil to prevent root rot.
Soil:
Pampas grass dislikes heavy clay. Improve drainage with sand/compost or plant on a slight mound.
Fertilizer:
Feed lightly in spring with compost or slow-release balanced fertilizer.
Too much nitrogen = lots of leaves, fewer plumes.
6) PRUNING & WINTER CARE
Pruning: Late winter/early spring
Tie leaves into a bundle.
Cut back to 8–12 in (20–30 cm) above ground.
Wear gloves & long sleeves—leaves can be sharp.
Cold areas:
Mulch around the base in late fall. In very cold climates, grow in large pots and shelter over winter.
7) TROUBLESHOOTING
No plumes yet: Plant may be young (often blooms year 2), needs more sun, or was over-fertilized.
Yellowing / soft base: Too much water or poor drainage → reduce watering, improve soil drainage.
Flopping leaves: Not enough sun or too much fertilizer → move to brighter spot, feed less.
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