# Pollinator-friendly garden guidelines and biodiversity > Live situation record from CLSTR: https://clstr.news/situations/pollinator-friendly-garden-guidelines > Updated: 2026-08-28T21:00:49.000Z. Sources: 17. Developments: 7. Guidelines for creating pollinator-friendly gardens emphasize using native, long-blooming species to provide continuous nectar and pollen. In Florida, recommendations include evergreen species for acid soils, such as sparkleberry and Darrow’s blueberry, alongside deciduous shrubs like redbud and fringe tree. For European gardeners, advice focuses on selecting plants that thrive in the local climate and staggering flowering periods. Effective design requires matching plant traits to specific pollinator needs, as variations in flower shape, color, and scent influence visits. Gardeners are cautioned against using double-petalled ornamental cultivars, such as certain roses, marigolds, and petunias, because extra petals can replace stamens, making nectar and pollen inaccessible. Recent research highlights seasonal challenges, including a ‘nectar gap’ identified by the University of Sussex. While nectar is abundant in spring, honeybees face significant energy deficits between mid-July and late August due to a lack of suitable flowers, a situation worsened by heatwaves and drought. In professional horticulture, bumblebees are utilized for greenhouse pollination, particularly for tomatoes, due to their ability to fly in cooler temperatures and poor weather. Late-summer gardening practices also impact wildlife. The Ligue pour la Protection des Oiseaux (LPO) notes that as caterpillars disappear in late August, birds like tits shift to an omnivorous diet of seeds and berries. Excessive tidying—such as removing dead wood or fallen leaves—can remove these essential food sources. To support biodiversity, gardeners are encouraged to maintain less manicured spaces with seed heads and late-blooming plants like asters and goldenrod, which provide critical nourishment during seasonal transitions. ## Timeline ### 2026-08-28: Gardening practices impact bird and pollinator food sources Late summer gardening habits, such as excessive tidying, can deplete natural food sources for birds and pollinators, impacting local biodiversity. 2 sources. https://clstr.news/cluster/gardening-practices-impact-bird-and-pollinator-food-sources ### 2026-08-22: Pollinator gardens face risks from toxic plants and pesticides Some bee-friendly plants may actually harm pollinators due to natural toxicity or neonicotinoid pesticide treatments used at nurseries. Native, self-seeding plants are recommended alternatives. 2 sources. https://clstr.news/cluster/pollinator-gardens-face-risks-from-toxic-plants-and-pesticides ### 2026-08-22: Pollinators face seasonal nectar shortages and environmental challenges Studies and horticultural data highlight the importance of pollinators and the critical nectar shortages bees face during late summer due to reduced floral availability. 4 sources. https://clstr.news/cluster/pollinators-face-seasonal-nectar-shortages-and-environmental-challenges ### 2026-08-19: Ornamental plants like butterfly bushes and passionflowers enhance garden biodiversity Gardening highlights include the compact Buddleja davidii ‘Little Rockstars’, which attracts pollinators, and the resilient, fast-growing blue passionflower (Passiflora caerulea). 2 sources. https://clstr.news/cluster/ornamental-plants-like-butterfly-bushes-and-passionflowers-enhance-garden-biodiversity ### 2026-08-17: Garden biodiversity and the importance of pollinator-friendly plants Gardeners can support declining pollinator populations by choosing nectar-rich, open-centred flowers over ornamental hybrids that lack accessible pollen and nectar. 2 sources. https://clstr.news/cluster/garden-biodiversity-and-the-importance-of-pollinator-friendly-plants ### 2026-07-30: Gardens: Plant Choices and Water Practices to Support Pollinators Gardeners are urged to plant diverse native flowers and provide safe shallow water sources to aid declining pollinators like bees and butterflies. 3 sources. https://clstr.news/cluster/gardens-plant-choices-and-water-practices-to-support-pollinators ### 2026-07-17: Pollinator garden advice and reasons for low pollinator visits Guidelines list native plants for pollinator gardens and explain why pollinators may ignore unsuitable flowers. 2 sources. https://clstr.news/cluster/pollinator-garden-advice-and-reasons-for-low-pollinator-visits --- Cite as: Pollinator-friendly garden guidelines and biodiversity. CLSTR, https://clstr.news/situations/pollinator-friendly-garden-guidelines