Name: Blue China aster seeds 50 seeds/bags
Brand: Shanghai Touchhealthy seeds shop
SKU: A059
Price: 0.22 USD
Availability: InStock

Description

Our premium blue China aster seeds feature stable germination rate and neat upright bushy growth habit. Botanically named Callistephus chinensis, this single blue variety bears densely layered full double flower heads in elegant deep blue tone, similar in shape to chrysanthemums. Sturdy branching stems hold heavy blooms upright, showing outstanding ornamental value in late summer and early autumn gardens.

Blue China aster prefers mild cool climate and cannot endure sustained high-temperature sweltering weather. It blooms abundantly from late summer until early autumn frost arrives. Widely used for formal flower bed mass planting, mixed border matching, courtyard cluster landscaping, container pot cultivation and high-grade fresh cut flower bouquets with excellent lasting vase performance. It grows best in loose, fertile, humus-rich well-drained loam soil and is sensitive to waterlogged roots. Routine work mainly includes regular moderate watering, timely deadheading of faded flowers and ventilation to prevent fungal diseases, which makes it a distinctive seasonal landscape flower suitable for landscaping projects and novice flower growers.

Planting Instructions

Soil Preparation: Prepare loose, organic-rich, well-drained fertile loam soil; mix river sand and decomposed compost into heavy clay soil, avoid low-lying waterlogged depressions.
Sowing Method: Scatter tiny seeds evenly on smooth soil surface, barely cover with 0.3cm thin soil layer, light exposure greatly improves germination rate.
Germination Condition: Keep topsoil slightly moist without stagnant water, constant temperature 15–22°C, seeds germinate within 10–20 days.
Seedling Care: Thin crowded seedlings to ensure sufficient spacing and air circulation; full sun or light partial shade works well to avoid spindly weak growth.
Daily Maintenance: Keep soil evenly moist but never soggy; prune overgrown lateral branches moderately in summer for compact plant shape; remove faded blooms continuously in autumn to extend viewing period.

Specification

Plant Name: Blue China Aster
Botanical Name: Callistephus chinensis
Plant Type: Cool Season Annual Flower
Mature Height: 40–70 cm
Blooming Period: Late Summer to Early Autumn Frost
Germination Temperature: 15–22°C
Growing Temperature: 10–26°C
Light Requirement: Full Sun / Light Partial Shade
Soil: Fertile loose well-drained humus loam soil
Planting Difficulty: Moderate
Core Features: Elegant solid blue full double blossoms, long autumn flowering period, excellent cut flower effect, compact upright plant shape, unique cool-season ornamental flower

FAQ

Q1: Can blue China aster survive hot summer weather?

A1: It will decline rapidly under continuous high heat, it performs best as a cool autumn seasonal flower.

Q2: How to make the plant more bushy and flower more?

A1: Pinch the top tips of seedlings 2 times during summer growth to encourage more flowering side branches.

Q3: What are the main risks during cultivation?

A3: Root rot and aster fusarium wilt are common hazards, strictly control watering frequency and guarantee soil drainage.

Q4: Is blue China aster suitable for cut flowers?

A4: Yes, thick layered petals and rigid stems enable long vase life after cutting.

Q5: Is it suitable for beginner gardeners?

A5: Manageable for new growers, the key points are well-drained soil and avoiding excessive watering.

Blue China aster seeds 50 seeds/bags

Description

Planting Instructions

Specification

FAQ

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