PDA

View Full Version : how long to wait after seeding to fertlize


BillyRgn
06-29-2008, 03:06 PM
on a new lawn area, which was seeded with straight fertilizer mixed in, how long should you wait to apply more fertilizer,and how long would you wait to put weed and feed down. also, how do you make a newly seeded area get that darker green color. this is my house, so please don't knock me and say i should be licensed, because i don't usually do this. i put new top soil down, mixed straight fertilizer in, put seed down and covered it with straw, it is coming up beautiful, real thick, looks excellent. but it is just more of like a lime green color, rather than that darker green like the rest of the lawn. it is not burning out, its being watered regularly but not over watered, does it get darker with time, or do i need to apply something else ??? thanks guys Billy

PerfectEarth
06-29-2008, 03:16 PM
What formula did you mix in? You should put down an 18-24-12 (starter fert)

tremor
06-29-2008, 05:54 PM
Billy,

Depending on the type & percent & rate of slow release N you might have been due 2 weeks after installation.

It is common today to see all chemcical starters. Likewise there is plenty of "25% SCU" starter that might as well be all mineral.

If it's been 2 weeks or more, I would hit it again. But use a quality slow N this time.

JNyz
06-29-2008, 05:57 PM
Hold off on the weed control until you are sure all the seed has germinated.

rcreech
06-29-2008, 06:06 PM
Depending on the analysis you put down at seeding...I would make the same rec as above. Go in with 18-34-12 (50% SCU) 2-3 weeks after seeding and then once you have mowed it 1 or 2 times hit it with something like a 30-010 (50% SCU) and you can then do weed control. Don't do any weed control until you have mowed several times or you may take out the young seedlings!

mrkosar
06-29-2008, 07:18 PM
what rcreech said. the new grass will darken and thicken up with time. what type of seed was it? many times it comes in a little lighter colored green, but it will be fine.

lilmarvin4064
06-29-2008, 08:25 PM
soil test

In many areas near me, low in phosphorus, you will need a second app of 18-24-12. The 50% SCU, MOP/SOP version is very nice. However I prefer 12-24-14 or 14-24-14 MAP, SOP (smaller prills, and less expensive). Apply 1 to 1.5#P/1000 sq ft. Then I usually follow up in 4 weeks with a 20-10-10 or 25-15-10 50%SCU.

You picked a bad time of year to put seed down...

If you were in my neck of the woods, you'd better be using some fungicide and biostimulant if you want that new grass to survive.

JNyz
06-29-2008, 09:14 PM
soil test

In many areas near me, low in phosphorus, you will need a second app of 18-24-12. The 50% SCU, MOP/SOP version is very nice. However I prefer 12-24-14 or 14-24-14 MAP, SOP (smaller prills, and less expensive). Apply 1 to 1.5#P/1000 sq ft. Then I usually follow up in 4 weeks with a 20-10-10 or 25-15-10 50%SCU.

You picked a bad time of year to put seed down...

If you were in my neck of the woods, you'd better be using some fungicide and biostimulant if you want that new grass to survive.


He is in conn. so he can get away with it more then most of us.

RigglePLC
06-29-2008, 09:17 PM
What kind of seed did you use. I know it is too late--but--the highest quality seed is very dark green because it has genetic green color. It is common for new lawns to have light green color. Creech is right--more fert in the first year will be a big help. When the soil has been built up in fertility--it will be greener and hold the color better.

weircc
06-29-2008, 10:53 PM
not trying to jack this thread but im having saving problem i used a 5way fescue turf builder with some starter fert and stopped growing i mowed one time didnt really need hole yard mowed but did anyway what fert should i use 18/24/12 or the 18/34/12 both was mentioned

rcreech
06-29-2008, 11:01 PM
not trying to jack this thread but im having saving problem i used a 5way fescue turf builder with some starter fert and stopped growing i mowed one time didnt really need hole yard mowed but did anyway what fert should i use 18/24/12 or the 18/34/12 both was mentioned

18-34-12 was a typo in my post as it was supposed to be 18-24-12 and I would also go with the 50% SCU!

Sorry about that!

If you have already mowed the lawn once or twice I would maybe even recommend skipping the starter and using a higher N product with 50% SCU. Either way is right...as far as that goes!

I always tell the homeowner to mow as soon as possible as this will encourage the lawn to tiller and thicken up. Between mowing and fert it should fill right in there for ya!

weircc
06-30-2008, 06:10 AM
thank will give this a try for sure

BillyRgn
07-01-2008, 12:33 PM
thank you for the help, here is the info requested.
SEED: Rhino Seed & Turf Supply Class A 50 pound bag
38.8% Creeping Red Fescue
29.1% Perennial Ryegrass
27.45% Kentucky Bluegrass
Fertilizer used at time of seeding:
Vigro Ultra Turf Starter Fertilizer
20-27-5
Total Nitrogen 20%
10.56% Ammonical Nitrogen
***9.44% Urea Nitrogen
Available Phosphate P2O5 27%
Soleble Potash K2O 5%

*** contains 3.5% Slowly available urea nitrogen from coated urea