Scotts Turf Builder Bonus S Southern Weed & Feed₂ (29-0-10) Review

Application window: April–May and September, and check every label against centipede before it leaves the shelf

Application window: June through July, inside the same short window everything else happens in. There is no autumn second chance

Application window: March–May and during monsoon flushes; Celsius-type products handle 100°F+ windows

Application window: Bounded by the label's temperature ceiling rather than the calendar — spring treatments finish before the June heat arrives, and nothing selective goes down again until September cools off

Application window: March–May while weeds are young; avoid spraying drought-stressed turf in summer

Application window: May–June and September; high-altitude sun makes stressed turf easy to injure, so spot-treat rather than blanket-spray

Application window: Broadleaf sprays in May–June and again in September, when the weeds are moving sugars to the roots; skip July and August, when a stressed cool-season lawn takes the injury and the weed does not

Application window: April to late May, then September into October. Skip July and August entirely: this is the transition zone, and a stressed tall fescue lawn takes the injury the weed shrugs off

Application window: March–May and October–November; avoid applications above 85°F

⚖️ The correct weed-and-feed for a Florida St. Augustine lawn, with two Florida-specific catches. A bag printed for Florida removes bermudagrass from the permitted grass list, so read the list on the bag rather than assuming. And the label advises against applying atrazine on sand and loamy soils where the water table is close to the surface and the soil is very permeable — which describes much of Florida. Many counties also ban nitrogen June 1 to September 30, narrowing the window further.

Application window: April to early June and September–October; avoid mid-summer sprays on stressed turf

⚖️ Right bag for St. Augustine, centipede and zoysia — and bermuda is on the permitted list too, which we previously said it was not. What rules it out is bahiagrass or any cool-season grass in the mix. On coastal sandy soils, note the label's groundwater advisory about permeable soil with a high water table.

Application window: Year-round where the turf is actively growing, which is most of the time; the constraint is heat and drought stress on the leeward side rather than a dormant season

Application window: Late April into June, then September into October; skip the July and early August heat, which is also when UI's own fertilizer schedule goes quiet

Application window: May–June and September; fall beats creeping charlie best

Application window: October is the most effective month for broadleaf weeds; never apply above 80°F or to drought-stressed turf

Application window: October, and October is most of it — but check the wind and the date against what is happening in the fields, because early-summer growth-regulator drift is a real seasonal risk here and your own spray carries the same way

Application window: April into May and again in September–October; avoid July and August, when a tall fescue lawn here is already at its limit

Application window: April–May and September–October; autumn is the knockout window for the wild garlic that defines a Kentucky winter lawn

Application window: March–May and October–November; avoid applications above 85°F and never on drought-stressed St. Augustine

Application window: June, then a narrow late-August to mid-September window. Maine's usable autumn is the shortest in New England

Application window: April–May and September–October; autumn is the knockout window for the ground ivy and violet the Piedmont is full of

Application window: A narrow autumn is the real window here: late September into October, after the summer heat and before New England's early frost closes the season

Application window: May–June and September; autumn is the stronger window for perennial broadleaf weeds

Application window: Late May–June and September; autumn is the stronger window for perennial broadleaf weeds

Application window: April–May and September, avoiding the midsummer heat restrictions on most labels

Application window: April–May and September–October; skip summer sprays on drought-stressed fescue

Application window: June, then late August into September. In a sub-100-day valley there is no third chance

Application window: Late spring and again from late August through September, when perennial broadleaf weeds are moving reserves to the root

Application window: Late May into June, then late August through September. The autumn window closes earlier here than anywhere else in southern New England

Application window: May and September–October; autumn is the knockout window for perennial broadleaf weeds

Application window: Spring and early autumn; in the south skip the June heat entirely, and in the north the usable autumn window closes by early October

Application window: May and September–October; autumn is the knockout window for perennial broadleaf weeds

Application window: April–May and September–October; avoid spraying heat-stressed fescue in July–August

Application window: Early to mid-June, then late August into early September. There is no third opportunity

Application window: May–June and September; fall applications hit dandelion taproots hardest

Application window: Judged by wind before season: sustained wind is Oklahoma's normal condition, so the usable spray days are calm mornings in April, May and September rather than whole months

Application window: March–May and September–October; the long mild shoulder seasons give more usable spray days than most states get

Application window: May and September — fall is the knockout window for perennial broadleaf weeds

Application window: Broadleaf work in May–June and again in September; the September pass is the one that holds, because the weed is moving reserves down

Application window: April–May and September–October, and never above 90°F — centipedegrass is sensitive to 2,4-D both at spring green-up and in summer heat

Application window: Early to mid-June, then late August into September, which is the pass that actually holds on perennial broadleaf weeds

Application window: April–May and September–October; skip sprays on drought-stressed summer fescue

Application window: April–early June and September–October; avoid herbicides above 90°F

⚖️ Suits the St. Augustine lawns common on the Gulf Coast, and the label permits bermuda as well. What it will injure is bahiagrass and the cool-season grasses, so a mixed lawn is the case to check. Confirm local stock — the label excludes Hawaii, Alaska and the US territories, but not Texas.

Application window: May and September, avoiding the intense midsummer heat on the label

Application window: Late May through June, then a short late-August to mid-September window. Vermont's autumn window is the narrowest in New England

Application window: April–May and September–October; skip sprays on heat-stressed fescue in July and August

Application window: April–May and September–October; WSU caps applications at 80°F, stricter than the 85–90°F ceilings used elsewhere

Application window: April into May and again in September–October. Skip July and August: this is transition-zone country and a heat-stressed tall fescue lawn absorbs the injury the weed does not

Application window: Early to mid-fall is the favourable window for dandelion and other perennial broadleaf weeds

Application window: June, then late August into September. UW's own framing is useful: a slow-release application covers a 90 to 100 day growing season, which is roughly the entire Wyoming season