Gardening & Horticulture — 2026-05-04

What to Plant & Do Right Now

May is one of the most action-packed months in the garden. Here's what experts and gardeners recommend doing this week:

1. Sow Runner Beans, Rocket, and Herbs Outdoors Country Living's seasonal guide highlights seven top vegetables and herbs to plant in May for a thriving summer veg patch. Top picks include rocket (fast-growing, direct sow now), runner beans (sow outside after last frost), basil (from seed or transplant), and courgettes (direct sow or pot-grown transplants). These crops will peak just when you need them in summer.

2. Plant Tubers, Annuals, and Low-Maintenance Perennials Homes & Gardens' "What to Plant in May" guide recommends annuals, perennials, ornamental grasses, and tubers this month for a garden that "practically looks after itself" through summer. Dahlias from tubers, hardy geraniums, and ornamental grasses planted now establish quickly before summer heat.

3. Complete Your Critical Lawn Task The Mirror reports that completing one specific lawn care job in May is the key to a green, healthy lawn all summer: scarifying and feeding. Removing thatch buildup now and applying a slow-release nitrogen-rich lawn feed allows grass to establish strong roots before the heat of summer arrives.

1 sources

mirror.co.uk

mirror.co.uk

Trending in the Garden World

Master Gardeners Across the U.S. Release May Planting Guides

• What's happening: Master Gardeners in Missouri (Jefferson City News-Tribune) and Pennsylvania (WESA/Penn State Extension) both published updated May gardening guides this week, covering outdoor flowering plants, ornamentals, and vegetable gardening.
• Why gardeners care: These free, regionally tailored resources help gardeners avoid common May mistakes — from planting too early to missing fertilization windows. Penn State Master Gardeners in Luzerne County specifically emphasized spring planting success tips for a bountiful season.

UK Horticulturalist Shares Summer Readiness Tips

• What's happening: A local horticulturalist interviewed by the Bury Times shared a step-by-step guide for getting gardens summer-ready, covering soil preparation, pruning, and seasonal planting priorities for May.
• Why gardeners care: With summer just weeks away, this is the last realistic window for soil improvement, structural pruning, and filling gaps with fast-establishing plants before heat stress arrives.

Composting 2026: A Renewed Focus on Soil Health

• What's happening: Gardener's Grimoire (Substack) published a timely deep-dive into composting this week, framing it not just as waste disposal but as creating a "valuable resource" central to garden success.
• Why gardeners care: With fertilizer costs rising and interest in organic methods at an all-time high, composting offers a free, effective way to build soil fertility. The piece is generating strong reader engagement among home growers.

Expert Corner

RHS 2026 Houseplant Predictions: Monstera and Dracaena Lead the Trend The Royal Horticultural Society's 2026 gardening predictions highlight Swiss cheese plant (Monstera) and dragon trees (Dracaena) as the season's top houseplants, prized for their large-leaved, "jungle-esque" appeal. The RHS notes these are favoured over more traditionally architectural plants. RHS Gardens are hosting hands-on houseplant events to meet demand for growing tips.

RHS on Spring Vegetables: Plan for the Hungry Gap The RHS vegetable growing guide (updated March 2026) recommends planning and growing vegetables specifically to fill the "hungry gap" — the late spring window when winter crops are exhausted and summer harvests haven't arrived. Greenhouse growing and cold-frame techniques extend the season significantly.

Money-Saving Tip: Make Your Own Seed Trays The RHS money-saving spring guide suggests a practical tip for budget gardeners: make your own seed trays from newspaper and paper roll centres instead of buying plastic cell trays. Supermarket goods trays can also be repurposed as seed-starting containers — reducing both cost and plastic waste.

1 sources

rhs.org.uk

2026 gardening predictions

Sustainable & Urban Growing

1. Composting as Core Practice — Not an Afterthought This week's Gardener's Grimoire composting feature makes a compelling case for treating compost as a primary garden input. Key how-to: layer "greens" (nitrogen-rich materials like grass clippings and vegetable scraps) with "browns" (carbon-rich materials like cardboard and dry leaves) in a roughly 1:3 ratio, keep moist but not soggy, and turn regularly. In as little as 6–8 weeks during warm weather, you'll have finished compost ready to enrich beds.

2. Permaculture Principles for the Home Garden Urban Farm Store's updated permaculture guide (published within the past few weeks) explains how to apply permaculture's five zones to even a small backyard. Key starting technique: food forests — layering canopy trees, shrubs, ground cover, and root vegetables to mimic natural ecosystems, reducing the need for irrigation, fertilizer, and pest control.

3. Newspaper and Recycled Containers for Seed Starting The RHS recommends using newspaper pots and repurposed paper roll centres as zero-waste alternatives to plastic seed trays. This technique is especially effective for starting beans, squash, and other seedlings that dislike root disturbance, as the newspaper pots can be planted directly into the ground and will biodegrade.

Community Spotlight

1. Backyard Layout Planning Gets Detailed A popular Reddit post in r/vegetablegardening (Jan 2026, still being discussed) showcased an ambitious 2026 backyard vegetable garden layout plan. Commenters advised the original poster on microclimate creation — using climbing cucumbers and melons to cast shade on bok choy, extending its season into midsummer, then replanting bok choy in late August for a fall harvest. One standout tip: "plant more bok choy at the end of august for a fall harvest" — a technique newer gardeners often overlook.

2. Tracking Planting and Harvest Schedules A frequently referenced r/vegetablegardening discussion on keeping planting and harvest schedules remains highly active. Community members recommended garden journals with sections for: fertilizer type and schedule, watering logs, week-by-week growth notes, when seeds were started vs. sprouted vs. matured, spacing and thinning notes, pruning records, and harvest dates. Digital spreadsheets and free apps were also popular suggestions for beginners.

3. Ask Extension: Protecting Blueberries from Birds A timely question answered on Ask Extension this week flagged a common May dilemma for fruit gardeners: how to protect ripening blueberries from birds without blocking pollinators. The expert answer: use insect mesh netting once berries begin to ripen, but never cover plants in spring when bees need to access flowers for pollination. Also noted: young blueberry plants often produce little or no fruit in their first year or two — patience is essential.

This Week's Action Items

• 🌱 Start now: Sow runner beans, rocket, basil, and courgettes outdoors; plant dahlia tubers and hardy geraniums for summer colour
• 🔍 Watch for: Thatch buildup in lawns (scarify and feed now before summer heat sets in); birds targeting ripening blueberries (net after bees have pollinated)
• 📚 Learn about: Permaculture "food forest" layering — a low-maintenance technique for stacking productive plants that reduces watering and feeding needs all season