Just updating plug progress with a photo. I didn’t get around to mowing this section. Almost everything has filled in at this point, but I have this unsavory kyllinga I still need to eliminate.
It’s hard to believe this entire area was just a dirt patch in mid-April.
Not much to report this week, but this is plug progress from 5/21/25:
The above had a 2.5 inch cut, so that is notable. The rest of the yard is still being cut at 4″, but there were some technical reasons for that. For contrast, this was the original starting point from April 9th:
This is a direct sun location and we’ve been in a kind of drought. So I guess for St. Augustine sod plugs, getting a decent fill-in takes about 3 months. I think timing the plugs to plant right when soil temps are in the 60s is probably the best way to go, and I think the only step I really missed was using a pre-emergent (so kyllinga ended up needing to be killed between the plugs.)
Or trying to, anyway:
Supposedly these seeds are sterile or non-viable — or, the yields on seeds from floratam are poor. Google searches suggest that I could use seeds from the palmetto cultivar. I’m tempted to have sectioned off areas just for running turf grass experiments, but life obligations will likely prevent me from seeing turf-grass glory.
I applied 7-0-0 via Cyclone sprayer to my front yard. The recovery on this section is turning out nicely, but I still see some mild discoloration and I want to jack-up the density here:
My plugs didn’t progress that visibly this week. I backed off irrigation from shrubs to avoid having to deal with kyllinga and nutsedge, but that translated to slower growth from the plugs. This is a hard balance to maintain, but I suspect it will be easier when my lawn acts like a normal lawn again and is filled in:
We’re finally getting that sweet, sweet rain. It’s amazing how much growth there was in just over one month:
I suspect in another month this will be completely filled in. I’m hoping this section ends up looking like another section where I never had any issues . Wherever there was a slope and no water pooled, my grass did quite well. Have a look:
I should have another update with some curious data anomalies I’ve observed with moisture sensors. So far, big picture, things are moving in the right direction.
I don’t mind my lawn care company. However, when it comes to diagnosing real problems, I don’t think there’s any substitute for watching a lot of YouTube videos and then going out into the field and breaking things or testing theories. I’ve just gone ahead and started supplying micronutrients and applying tiny fertilizer supplementation in a way that covers the gaps between the large-dose applications that get applied every few weeks.
I replaced my manual pump sprayer with one that lets me walk around carefully and more comfortably to target consistent problem areas — below is what I chose, photographed right on the edge of my lawn near one of my shrub projects.
So far I’ve just been hitting problem areas. I think the eventual goal after I’ve corrected the major problems is to go back after the Bermuda invader and attempt to apply Recognition with Fusillade II.
I’ve also been plotting how to control the irrigation system better. Rainbird’s equipment is good, but I want finer grained control over response to moisture levels. Supposedly, Rachio enables this. What’s peculiar, however, is that most of the irrigation experts in the area recommend against Rachio. I have some tinkering and investigation to do.
Now, in line with talking about spraying, this is the area where I’ve targeted with iron on the foliage to address the yellowing leaves. I’ve applied sphagnum peat moss in the troubled area and have done a light pass on the yellowing blades. Let’s see if this corrects itself in a few weeks:
Continuing with the plug-progress theme, here’s the status this week:
The core-plugs have actually all spread out. The frustrating part is that I didn’t hit this area with kyllinga killer so I’m confronted with kyllinga growth masking the spread of the runners. I’m just going to let it fill in green and hit this hard once I think the grass can take it.
This is a closer look at the situation:
You can see the low, close to the ground blades of the floratam spreading out, but there are also large clumps of kyllinga competing for the same space.
Some of this kyllinga problem is that I’m watering very frequently to support the growth of viburnum bushes in the same irrigation zone. I can’t pull back on the water. The kyllinga just hops in everywhere it gets a chance. This weed is a real nuisance.
I’ve also started to get a sense of the peaks and valleys in the moisture sensor data. I’m trying to get a sense of peaks and valleys so I can (manually) calibrate irrigation zone operation to respect a minimum and maximum:
I wish I had the data from the winter. The damage I have in my lawn, I think, is from Take All Root Rot. Wherever the municipal irrigation failed, the water ran through a channel. When the water didn’t evaporate quickly and pooled, it created problem zones that just failed to allow the grass to recover in the spring.
I looked today whether some of these areas were completely dead, and they weren’t. It just appears that I need to hit the leaves iron and turn things around so the roots can heal eventually. I’m still trying to learn how to do this, and I’m hoping I can fix the damage myself.
If you ever visit a Home Depot in Florida during spring, you’ll instantly know it’s a wild place, especially the outdoor gardening section. People are rushing to the aisle with Black Kow manure, loading up carts before others arrive. It’s like the Tickle-Me Elmo craze of Christmas past, but instead of Elmo, it’s bagged cow poop that’s good for plants. Just being in such a crazy environment makes you want to try something new or have a personal project in mind.
On one of my Home Depot weekends, I ended up buying a plant called Lemon Coral Sedum. It seemed like the sort of plant a questionable character like me could manage. I ended up putting a pot of this stuff outside my front door and noticed that, without any real care, it would naturally just spread and grow on the nearby rock beds. I didn’t so much as have to water it. There were just a sort of spongy, small growths that showed up nearby without any real human intervention. I’ve been letting the “weed” spread, collecting the growths, and putting them inside 3D-printed pots:
It’s wild how you can start out 3d printing circuit board enclosures and up with Moai with succulents growing out of their head.
I haven’t really actively watered the Bermuda experiment since I was satisfied with seeing the different grass blades, but Scott’s common Bermuda absolutely took off even faster than the 2x-Pennington variant.
I wish I had the resolve and fight in me that Bermuda grass has — I’d be a more successful human being. I guess I’ll just let it serve as inspiration:
I’m very tempted to try and do a controlled region with this grass, but I believe working with it is like working with dynamite. All of my experience so far suggests that I cannot contain this grass in any meaningful way.
One of the ongoing problems I have in my irrigation system is that I think the zone grouping for the irrigation controller makes no sense. There are sections that need less water and other sections that need more water, but there’s no real way to decouple the total amount of flow to a specific area within a single zone without putting effort into physically changing the sprinkler heads. I also don’t have any sort of insight on what makes sense if I were to tweak sprinkler heads. My preference would be to split the zones, but apparently the trouble zone is in a “difficult” location.
I’m attempting to gain some insight on this problem by looking at how different zones register in terms of soil moisture if I change the frequency of watering or with various settings. What I know from reading various internet forums is that the root system in one area could end up stunted if I don’t allow for deep watering. I’ve planted some sensors, and I’m already noticing that I’m still in over-watering territory even after dialing back my settings. If I can find some compromise here that works, I’d consider that a win. Here’s a recent sampling of data with a new sensor — there’s not enough data yet, but it makes for some nice blog color:
Oh, and here’s the plug progress. Things seem to be spreading, albeit slowly. (Some of the greenery is because I still have a Kyllinga infestation — it takes repeated application of herbicides to get rid of this damned weed.) I think the progress is quite visible relative to the photos from the first post showing the plugs being planted.
It turned out that the reason there was so much devastation in my lawn is because the time slots that were programmed into my irrigation controller coincided with low municipal water supply pressure. The system was programmed to fire at 3:30 a.m. I wasn’t quite sure what was going on, so I placed little water collectors over the lawn to analyze the distribution of water:
When the boxes weren’t registering with water and there were soggy spots, I realized what had happened: the pooling zones contributed to fungus before the temps warmed up. The fungus weakened my St. Augustine and opened me up to weeds and Bermuda. My short cutting of the lawn didn’t help; however, had the irrigation been fine, I’d likely have been fine. I’ve halted mowing until I have an adequate green up, and then I’ll manually trim the height to the recommended 3-4″.
It became much easier for me to manage the diagnosis of these problems after I installed a Wi-Fi unit into my irrigation controller and started observing behavior by triggering the app and zones as needed.
The Real Kyllinga:
The wet pooling zones contributed to another problem — kyllinga. I had the yard sprayed with Dismiss to blow away the sedge and the kyllinga. I have unsightly brown spots with dead kyllinga, although it looks like I need to hit the yard again in a few weeks to really manage this infestation.
Plug Progress:
Two weeks ago, I dropped plugs on the area where the sedge and kyllinga died off. The original photo was on or around April 7th. On April 21st, I am seeing extremely healthy plugs with very beautiful green growth. The eastern end of the plug patch is seemingly filling in. I did not hit this area with Dismiss; I’m just going to deal with the remaining weeds after the grass gets a stronger foothold.
One thing about lawn issues is that the “debug cycle” to diagnose real problems is much longer than for diagnosing problems in something like software. The process of being forced to understand the process is helping me develop a real skill: being patient.
Here’s a current photo of the progress below. (You can even see the dead kyllinga at the bottom.) The plugs themselves have greened up quite a bit — I’m just waiting for the runners to take off.
