Scientific Name: Scientific Name
Common Names: Common Names / Aliases
St. Augustinegrass
Test tagline for grass
St. Augustinegrass At-a-Glance
Hardiness Zone Min
Zone 1
Water Requirement
Very Low
Sun Requirement
Full Sun (6+ hrs direct)
Wear Tolerance
Very Low
Establishment Speed
Slow
Labor Intensity
Very Low
Telling It Apart
Is St. Augustinegrass Right For Your Yard?
Advantages:
Best If:
Disadvantages:
Avoid If:
Is It Safe for Pets and Kids?
Where It Grows
Getting Established
Keeping It Healthy
What Goes Wrong
Weeds In This Grass
Subtypes
Cold-Hardy St. Augustinegrass
The St. Augustines bred to survive winter at the northern edge of the range, where a standard variety dies outright.
Best For: Lawns in the Carolinas, northern Georgia and Alabama, central-to-northern Arkansas and inland Texas, where winter lows reach the teens every few years. Also for anyone in that band with a low, wet corner where cold air settles and the ground drains slowly.
Tradeoff: This buys about one hardiness zone, not immunity — with no underground stems to regrow from, a hard enough freeze still kills the whole lawn.
Drought-Tolerant St. Augustinegrass
The two that last longest without water, in a grass that dies rather than going dormant.
Best For: Open, full-sun yards on sandy soil across Florida and the Gulf South, especially where watering days are restricted. This is also the pick for a plain warm-season lawn with no shade, cold or virus problem to solve.
Tradeoff: Drought tolerance here means lasting longer before dying, not surviving — pushed past its limit this grass browns and dies rather than going dormant, and you resod.
Shade-Tolerant St. Augustinegrass
The cultivars that hold a dense lawn under a live oak, where the standard sun types stretch out and thin.
Best For: A yard under mature tree canopy or shaded by the house for much of the day, getting 4 to 6 hours of direct or bright filtered sun — ideally in the morning. Anywhere in the warm, humid South where hard freezes are rare.
Tradeoff: They build thatch faster than a standard St. Augustine, so annual aeration or light verticutting becomes a permanent job rather than a one-off.
Virus-Resistant St. Augustinegrass
The two replacements Florida extension recommends when lethal viral necrosis has killed a Floratam lawn — they get infected and survive it.
Best For: Southeastern Florida, Palm Beach County above all, plus Pinellas and the scattered other counties where sugarcane mosaic virus is confirmed. Anyone whose Floratam lawn is dying in expanding yellow-mottled patches, or whose neighbours' lawns are.
Tradeoff: Neither is immune — both catch the virus and simply survive it — and neither is a like-for-like swap for Floratam's maintenance.
The Seasonal Care Calendar
Spring (Mar-May)
Summer (Jun-Aug)
Fall (Sep-Nov)
Winter (Dec-Feb)
Find Your Precision Match
Choosing between species requires balancing your specific soil profile, local micro-climate, and maintenance goals. Use our Turf Match Tool to generate a data-backed recommendation for your specific yard.
Start Your MatchTechnical Specifications
Scientific Name: Scientific Name
Common Names: Common Names / Aliases
Growth Habit: Bunch-type (tuft-forming)
Growth Rate: Slow
Texture: Very Fine
Hardiness Zone Min: Zone 1
Cold Tolerance Rating: Very Low
Winter Color Profile: Evergreen
Climate Cool Humid: Unsuitable
Climate Cool Arid: Unsuitable
Climate Warm Humid: Unsuitable
Climate Warm Arid: Unsuitable
Climate Transition: Unsuitable
Sun Requirement: Full Sun (6+ hrs direct)
Shade Tolerance: Very Low
Water Requirement: Very Low
Drought Survival Strategy: True Dormancy
Soil Texture Fit:
Wet Feet Tolerance: Very Low
Compaction Tolerance: Very Low
Salinity Tolerance: Very Low
Wear Tolerance: Very Low
Recovery: Very Low
Recovery Mechanism: Rhizomes
Input Intensity: Very Low
Labor Intensity: Very Low
Thatch Production: Very Low
Urine Resistance: Very Low
Establishment Methods:
Germination Speed: Vegetative only (no seed)
Establishment Speed: Slow
Improved Cultivar Availability: High
Deep Dives & Practical Guides
Why Poa Annua Keeps Coming Back — and the 3-Year Plan That Finally Ends the Cycle
You've pulled it. You've sprayed it. You've watched the little white seedheads mock you every single spring. And every fall, like clockwork, it's back — in the lawn, in the beds, in the cracks you didn't know you had. Here's the hard truth nobody at the big-box store will tell you: you're not losing because you're doing it wrong — you're losing because you're fighting the wrong enemy on the wrong timeline. Poa annua isn't a one-season problem, and once you understand why, the three-year plan below stops feeling like a chore and starts feeling like a countdown.
Read Article
How to Apply Herbicides Correctly in Your Lawn and Garden Beds
Getting real results from a weed product has almost nothing to do with the brand on the bottle and everything to do with matching the method to the moment — the right chemistry, in the right place, at the right time. Learn how to apply herbicides correctly across both your lawn and your garden beds, whether you’re stopping weeds before they sprout or killing the ones already growing, without wasting product or harming the plants you want to keep.
Read Article
How to Kill Weeds Where Two Lawns Meet Without Harming Your Neighbor’s Grass
Controlling weeds along a shared property line is where good intentions quietly backfire—the season that's safe for your own lawn is often the season the lawn next door is most easily harmed. Learn the seasonal timing collision behind most fence-line damage, and the two habits that prevent it—reading what's actually in the bottle and spraying directed instead of broadcast—so you can clear the weeds without hurting your grass, your neighbor's, or the peace between you.
Read Article
The Truth About One-and-Done Weed Control
Most homeowners lose the fight against weeds not because they work too little, but because they act before they understand. One-and-done weed control is real — but it only works when identification, timing, and the right tool all line up. This guide explains how that sequence works across your lawn and your ornamental beds, and how each weed page in the MFY hub puts it into practice for your specific invader.
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Solving the Mystery of the False Evidence in Your Lawn and Landscape
A brown leaf or a yellowing lawn is rarely what it seems. When symptoms act as decoys, a calm, forensic approach brings clarity to the confusion. Learn how to look past the surface to find the quiet truth of what your plants are truly asking for.
Read Article
Living in the Middle: The Deep-Dive Guide to Transition Zone Lawns and Landscapes
The Transition Zone is a biological tug-of-war where neither northern nor southern species perfectly adapt. By using resilient "bridge" species and mastering maintenance levers like the Mowing Pivot, you can transform a struggling yard into a healthy landscape.
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What Your Hardiness Zone Really Means for Your Lawn and Plants
Uncover the foundation of a resilient landscape by mastering the science of hardiness zones. Learn how these climate boundaries are calculated and why understanding your local temperature limits is the first step toward choosing plants that thrive year after year.
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The One-Third Mowing Rule: A Species-Specific Guide to Mowing Heights
Stop guessing your lawn's health. While the one-third rule is the foundation, every grass species has its own threshold for stress. This guide provides exact 'mow-at' heights, seasonal frequency adjustments, and mower setting tips for over 12 grass types to ensure a professional-grade cut every time.
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How to Kill Weeds in New Grass Without Killing the Grass
You spent weeks preparing the soil and watering your new seeds, only to see a "carpet of green" that looks more like a weed patch than a lawn. It is frustrating to watch weeds grow twice as fast as your tiny seedlings, leading to a "Panic Phase" where many homeowners make the mistake of spraying too early. Before you reach for the herbicide and risk killing your investment, you need to understand the precise timing required to save your new grass while clearing out the invaders.
Read ArticleFrequently Asked Questions
Our maintenance and establishment guidance is derived from long-term agronomic field studies and turfgrass performance data from top research institutions.
Scientific Authority
This profile is grounded in turfgrass agronomy and soil science. Every recommendation—from irrigation requirements to nutrient management—is verified against agricultural research data to ensure optimal plant health and environmental sustainability in the Transition Zone.
Primary Resources