Monroe, North Carolina · B.F.Green
A year of care
in the flower garden
Nine plants, four seasons, and the jobs that matter: when to trim, what to feed, which stems to leave, and when to save seed. A companion to the vegetable planting calendar.
Follow the plant, then the calendar. Spring = March–May; summer = June–August; fall = September–November; winter = December–February. These are practical seasonal windows for Monroe’s Piedmont climate, adapted from the linked growing guides. Bud break, flowering, soil moisture, and the local frost forecast take priority over a date.
Start with the soil. Test before adding fertilizer or changing pH. Water at soil level when the root zone begins to dry; check new plantings more often. Moisture-loving Joe Pye weed, bee balm, and hydrangeas need different watering from candytuft. In clay beds, correct drainage before planting.
Keep mulch off crowns and stems. Use roughly 2–3 inches around shrubs and moisture-loving perennials, leaving a clear gap at their bases. Keep candytuft’s woody center and speedwell’s crown especially free of wet mulch. Do not fertilize dormant plants or push soft growth in fall.
01 · Euphoria Ruby Joe Pye weed
Eupatorium purpureum Euphoria™ Ruby · Joe Pye weed is also classified as Eutrochium.
Spring March–May
Clean & prepare: Remove last year’s dead stalks before new shoots lengthen, cutting above emerging growth. Mark the crown; it may wake later than nearby plants.
Feed: Top-dress lightly with compost. Additional fertilizer is usually unnecessary in fertile soil. This compact selection normally needs no height-control pinching.
Summer June–August
Water: Maintain even root-zone moisture during Monroe’s heat; avoid repeated wilting. Provide sun to part shade.
Flowers: Leave blooms for pollinators. Remove fading heads only for tidiness or to limit seedlings; reserve some if collecting seed. Support stems only if they lean.
Fall September–November
Collect: Clip brown, fluffy heads when seeds release easily, before wind disperses them. Dry and label using the seed notes below.
Prepare: Leave healthy stalks and remaining seedheads for wildlife. Remove diseased foliage; stop feeding and maintain moisture through dry spells.
Winter December–February
Rest: Leave the dormant crown undisturbed and avoid saturated soil. Retain sound stems until spring cleanup. No pruning of live growth or feeding is needed.
Plan: Seed-grown plants may differ from Euphoria Ruby; buy labeled plants for a matching display.
Guides: Darwin Perennials: Euphoria Ruby · NC State: Joe Pye weed.
02 · Candytuft
Iberis sempervirens · Evergreen, woody-based perennial.
Spring March–May
Trim after bloom: Lightly shear up to one-third of the leafy growth after the white flowers fade. Stay above bare, old wood; never cut to the ground.
Feed: Usually unnecessary in ordinary garden soil; correct only a demonstrated deficiency. Keep in a sunny, freely draining spot.
Summer June–August
Collect: Leave a few spring flower stems untrimmed. Harvest pods once brown and dry, before they open.
Water: Established plants tolerate some dryness. Water during prolonged drought, letting the soil drain between soakings. Keep sprinklers and wet mulch away from the woody center.
Fall September–November
Prepare: Lift off fallen leaves that smother the mat. Check drainage before winter rain. Avoid a hard fall haircut; retain the evergreen foliage.
Feed: None. Store fully dried seed in a labeled envelope.
Winter December–February
Protect: Keep foliage exposed to light and the crown free of soggy debris. Water only if soil is dry and unfrozen.
Wait: Assess winter-browned tips once spring growth returns; do not shear a dormant plant.
Guide: NC State: perennial candytuft.
03 · Endless Summer hydrangea
Hydrangea macrophylla ‘Bailmer’ · The Original Endless Summer®; “Ballmer” is commonly a label transcription error.
Spring March–May
Prune cautiously: Wait for green buds or leaves to reveal living wood. Remove dead tips just above a healthy bud pair; remove wholly dead canes at the base. Preserve live stems for early flowers.
Feed: Apply a labeled slow-release shrub fertilizer once as growth starts, guided by a soil test. Protect opening buds with frost cloth on forecast freezing nights.
Summer June–August
Water & shade: Favor morning sun and afternoon shade. Check soil before watering a midday-wilted plant; wet roots do not need more water.
Deadhead: Snip faded flowerheads just above the first healthy leaf pair. Keep cuts shallow. It flowers on both old and new wood; routine shearing sacrifices flowers. Avoid late-summer feeding.
Fall September–November
Preserve buds: Leave live canes and dried blooms standing. Do not cut back for winter. Remove fallen diseased leaves and replenish mulch around the root zone.
Seed: Not a practical way to reproduce this cultivar. If experimenting, retain heads and collect any dry brown capsules; offspring will vary.
Winter December–February
Protect: Keep the mulch layer in place and water during extended dry periods when soil is unfrozen. Protect exposed young plants during unusually severe cold.
Wait: Bare canes are normal. Do not assume they are dead or cut them to the ground; assess after spring leaf-out. No fertilizer.
Guides: Endless Summer: seasonal pruning · watering and feeding · NC State: identification and growing conditions.
04 · Autumn Amethyst azalea
Rhododendron hybrid ‘Conlee’ · Encore® reblooming azalea.
Spring March–May
Shape: Immediately after the spring flowers fade, selectively shorten stray branches with hand pruners. Avoid shearing. Deadheading is unnecessary.
Feed: After frost risk passes, use a modest label-rate application of slow-release azalea fertilizer if needed. Keep shallow roots mulched, with stems clear.
Summer June–August
Maintain: Check moisture during hot spells, especially in the first year. Morning sun with afternoon shade helps reduce heat stress.
Inspect: Check leaf undersides if foliage becomes stippled or pale. Diagnose before treating. Avoid summer shaping so the rebloom cycle can develop; finish any necessary supplemental feeding before August.
Fall September–November
Prepare: Enjoy repeat flowers; neither prune nor fertilize. Plant or relocate during cool weather, keeping the root ball slightly above poorly draining surrounding soil.
Seed: Optional: allow capsules to brown and collect before they split. Seedlings will not reproduce ‘Conlee’ reliably.
Winter December–February
Observe: Purple-toned winter foliage is characteristic of Autumn Amethyst. Maintain mulch and water during dry, unfrozen weather.
Protect: Shelter newly planted shrubs from severe cold and drying wind. Wait until spring to assess questionable branch damage; do not reshape or feed.
Guides: Encore: Autumn Amethyst · Encore care FAQ.
05 · Autumn Starburst azalea
Rhododendron hybrid · Encore® Autumn Starburst. Cultivar codes differ across the brand’s published materials (‘Robleze’ / ‘Roblezd’); retain your nursery tag for identification.
Spring March–May
Trim sparingly: This compact shrub usually needs little shaping. Shorten only wayward shoots immediately after spring bloom; keep its natural mound.
Feed & prepare: Use a light, labeled azalea fertilizer application after frost risk passes if needed. Maintain acidic, well-drained soil; test before adding acidifiers.
Summer June–August
Water: Keep establishing roots evenly moist, never waterlogged. Give morning light and relief from intense afternoon heat.
Rebloom: Leave new shoots untrimmed. Deadheading is optional and unnecessary. Avoid heavy feeding; do not add fertilizer from August onward.
Fall September–November
Prepare: Water new plantings through dry autumn weather and refresh mulch without burying stems. Do not shape after fall flowers.
Collect: If capsules form, gather dry brown ones before opening. Seedlings may lose the coral-and-white flower pattern; buy labeled plants for a match.
Winter December–February
Protect: Check root-zone moisture during dry spells. Use temporary breathable protection for newly planted shrubs during severe cold; remove when conditions improve.
Rest: No fertilizer or routine pruning. Leave bud-bearing shoots for spring bloom.
Guides: Encore: Autumn Starburst and care · brand identification sheet (PDF).
06 · Cherry Pops bee balm
Monarda ‘Cherry Pops’ · SUGAR BUZZ® series; cherry-red summer flowers.
Spring March–May
Clean: Remove dead stems above new basal shoots. Weed around the clump and give neighboring plants room for airflow.
Feed: A light compost top-dressing is usually enough in decent soil. Avoid heavy nitrogen. Its compact habit rarely needs pinching.
Summer June–August
Water: Keep soil consistently moist; drought stress favors mildew. Water the soil, preferably in the morning.
Cut: Snip spent heads above healthy leaves to extend flowering. For bouquets, cut above a leaf pair and leave foliage. Mildew resistance is not immunity: remove badly affected leaves and improve airflow.
Fall September–November
Collect: Leave selected heads to turn brown; shake ripe seed into a paper bag. Offspring may differ from Cherry Pops.
Clean: After dieback, remove diseased stems near the base without cutting green basal growth. Healthy seedheads can stay for wildlife. Stop feeding.
Winter December–February
Rest: Keep the crown drained and avoid heavy, wet leaf piles. Leave healthy stalks until spring cleanup. Water only during prolonged dry weather with unfrozen soil.
Plan: Note crowded or declining clumps for spring attention; do not fertilize dormant plants.
07 · Blue Moon bee balm
Monarda ‘Blue Moon’ · SUGAR BUZZ® series; lavender-blue flowers with purple bracts.
Spring March–May
Prepare: Clear old stems before new shoots lengthen. Keep nearby growth from crowding this compact clump.
Feed: Apply a little compost; use additional fertilizer only when soil results or poor growth justify it. Routine pinching is unnecessary.
Summer June–August
Maintain: Provide consistent moisture and good air movement during humid weather. Inspect for mildew despite the cultivar’s resistance.
Deadhead: Cut finished blooms above a healthy leaf pair, retaining green stems and leaves. Pick bouquet stems the same way. Avoid a whole-plant haircut while it is flowering.
Fall September–November
Save seed: Stop deadheading selected stems; collect when heads are dry and release seeds readily. Blue Moon seedlings need not retain the parent’s color or size.
Clean: Remove mildewed debris after dieback; retain healthy heads if desired. Protect any green basal leaves. No fall feeding.
Winter December–February
Protect: Keep drainage open and mulch beside, rather than over, the crown. Leave sound stems standing until spring.
Monitor: Check moisture during long dry spells, especially for recent plantings. No dormant-season fertilizer or trimming of basal growth.
Guide: Walters Gardens: Blue Moon. The same bee balm maintenance principles apply to both SUGAR BUZZ selections.
08 · Vernique Shining Sea speedwell
Veronica longifolia Vernique ‘Shining Sea’ · Also listed as Veronique™ Shining Sea; blue-purple flower spikes.
Spring March–May
Clean & feed: Remove dead stalks just above the basal foliage. Apply a light compost top-dressing; reserve fertilizer for poor soils or a demonstrated need.
Prepare: Give it sun and a drained root zone. Keep emerging shoots clear of smothering mulch.
Summer June–August
Deadhead: Once a spike finishes flowering, cut it back to healthy leaves or a side shoot to encourage more buds. Keep leafy growth.
Water: Maintain moderate, even moisture in hot weather. Avoid both prolonged drought and standing water; inspect crowded foliage for mildew or spots.
Fall September–November
Collect: Reserve a few spikes and harvest their dry brown capsules before seed sheds. Seedlings may not resemble Shining Sea.
Cut back: After stems die, remove them above the crown, preserving any green basal leaves. Healthy dry spikes may stay until spring. No fertilizer.
Winter December–February
Check drainage: Clear matted leaves and prevent water collecting around the crown. Avoid thick mulch directly over it.
Rest: Remove broken dead stalks if needed; otherwise leave cleanup until new growth approaches. No feeding.
Guides: Perennials.com: Shining Sea · RHS: longleaf speedwell.
09 · Vernique Raspberry speedwell
Veronica longifolia Vernique® ‘Raspberry’ · Compact speedwell with raspberry-pink spikes.
Spring March–May
Prepare: Clear old flower stems while protecting the new leafy mound. Choose a sunny position with soil that holds some moisture but drains freely.
Feed: Lightly top-dress with compost; avoid generous nitrogen applications that promote floppy growth.
Summer June–August
Cut flowers: Harvest spikes with some florets open, cutting above healthy leaves. Remove finished spikes to encourage continued flowering.
Water: Do not let the root zone remain dry during summer heat. Water at the base; allow airflow around foliage and remove badly spotted leaves.
Fall September–November
Collect: Let selected spikes mature until capsules are brown and dry. Bag the seed before it scatters; the Raspberry color is not guaranteed in seedlings.
Clean: Cut dead stems above living basal foliage, or retain healthy heads until spring. Remove diseased debris. Stop feeding.
Winter December–February
Protect the crown: Pull away wet leaf mats and keep drainage channels open. Do not bury the basal mound beneath mulch.
Rest: Check recent plantings during dry, unfrozen weather. No fertilizer or cutting into green basal growth.
Guides: White Flower Farm: Vernique Raspberry · RHS: species care. Both Vernique selections share the same seasonal maintenance needs.