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Filton is the aerospace town on the northern edge of Bristol whose runways once launched Concorde on its test flights; the BAE Systems and Airbus campus, the Aerospace Bristol museum and the managed greenspace of Filton Golf Club and the Cribbs Causeway retail park borders give bees a varied peri-urban landscape. Lime trees line the older residential streets of Filton; bramble and rosebay willowherb are prolific on the former airfield margins and the Filton railway cutting; and the oilseed rape on the Severn Vale fields toward Patchway and Almondsbury opens the season in late April.

Oilseed rape on the Severn Vale farmland between Thornbury, Oldbury-on-Severn and the M5 corridor gives a strong April to May flow; the flat fields around Olveston and Aust carry it particularly heavily. Hawthorn and blackthorn are dense on the Cotswold edge hedgerows above Wickwar, Rangeworthy and Iron Acton, and the Frome valley farmland east of Yate carries a reliable hawthorn flow in late April. Lime trees line the older streets of Kingswood, Staple Hill and Mangotsfield and carry a June town-centre flow. The Filton Airfield and BAE Systems perimeter scrub carries extensive bramble and rosebay willowherb, and the Frampton Cotterell and Coalpit Heath old colliery reclamation ground is dense with bramble through July and August. Sycamore is abundant along field margins and roadside hedgerows throughout the Cotswold edge; white clover on the improved grasslands of the Severn Vale closes the main flow from June to August. Ivy on the Cotswold limestone walls and the older suburban garden walls closes the year in October.