Cornish cornwall developing England english fern fresh fronds Great Britain growth natural nature pinnae plant pteridophyte spring stems temperate uncoiling unrolling woodland bracken dense green habitat Pteridium aquilinum summer Surrey background calm frond leaf peace pinna Pteridium stem texture tranquil brake clouds Fir firs forest hills horizon nursery sky tree trees underwood wideness boardwalk canada ecology ferns moss path trail Vancouver Island wild autumn color colour fall lake leaves parkland red water beautiful carbon conservation lichen plants rocks running stream undergrowth steps wooden angles Begonias bromeliads cascading cloud-forest colorful colors colourful conservatory creepers decorative delicate-ferns density distinctive dome ecological environmental epiphytic flora flowers foliage gardening gardens greenery greenhouse greening hanging height high highrise lush-vegetation orchids plantings Singapore tropical-highlands tropical-mountains vertical vertical-gardening vertical-gardens vines wall-garden