How Many Plants Do You Need?

Use the following table to help determine how many plants you will need to cover a certain area, then use the table at the bottom of this page to figure out how many flats to order.

		On Center Spacing of Plants
		4"	6"	8"	10"	12"	15"	18"	24"
Coverage Area in Square Feet	25	225	100	57	36	25	16	11	6
	50	450	200	114	72	50	32	22	12
	75	675	300	171	108	75	48	33	18
	100	900	400	228	144	100	64	44	24
	150	1,350	600	342	216	150	96	66	36
	200	1,800	800	456	288	200	128	88	48
	250	2,250	1,000	570	360	250	160	110	60
	300	2,700	1,200	684	432	300	192	132	72
	350	3,150	1,400	798	504	350	224	154	84
	400	3,600	1,600	912	576	400	256	176	96
	500	4,500	2,000	1,140	720	500	320	220	120
	1,000	9,000	4,000	2,280	1,440	1,000	640	440	240
	1,500	13,500	6,000	3,420	2,160	1,500	960	660	360
	2,000	18,000	8,000	4,560	2,880	2,000	1,280	880	480
	2,500	22,500	10,000	5,700	3,600	2,500	1,600	1,100	600
	3,000	27,000	12,000	6,840	4,320	3,000	1,920	1,320	720
	3,500	31,500	14,000	7,980	5,040	3,500	2,240	1,540	840
	4,000	36,000	16,000	9,120	5,760	4,000	2,560	1,760	1,080
	4,500	40,500	18,000	10,260	6,480	4,500	2,880	1,980	1,080
	5,000	45,000	20,000	11,400	7,200	5,000	3,200	2,200	1,200
	7,500	67,500	30,000	17,100	10,800	7,500	4,800	3,300	1,800
	10,000	90,000	40,000	22,800	14,400	10,000	6,400	4,400	2,400
	Spacing Multiplier	9.0	4.0	2.28	1.44	1.0	0.64	0.44	0.25

If you don't see your coverage area on the chart, use the following formula to calculate how many plants you will need:

     (Area in sq. feet) x (Spacing Multiplier) = Number of plants needed

Finding Unknown Spacing Multiplier

On occasion, you may need a spacing multiplier that is not on our chart. Use the following formula to figure the multiplier for your situation:

Multiplier = 144  where X = the spacing distance in inches you need
              X2

Example: If you need a spacing of 13.5 inches, your multiplier would be:

 144   =    144   =  mulitplier of 0.79
13.52     182.25

General 'Suggested Spacing' Guide

** Adjust spacing based on desired coverage time and budget **

2¼” & 4” pots:	Liriopes	12”
4” pots:	Daylilies	12” - 18”
	Ferns/Hostas	12” - 24”
	Ivies/vines	12” - 18”
72-cell packs:	Spicata	10” - 12”
	Mondo	8” - 10”
One gallons:	Most plants	18” - 24”

These are general suggestions for planting. If you want to make a greater show in your planting before your plants have had time to grow to their fullest, then you might need to add more. If you want a fast spreading plant to keep from filling in too fast, then you might want to not plant as many.

How Many Plants Are in a Flat?

Consult the table below to determine how many plants are provided in a certain number & type of flat:

Plant size =	4”	2¼”	Cell Pack
Flats	18 / flat	36 / flat	72 / flat
1	18	36	72
2	36	72	144
3	54	108	216
4	72	144	288
5	90	180	360
6	108	216	432
7	123	252	504
8	144	288	576
9	162	324	648
10	180	360	720
11	198	396	792
12	216	432	864
13	234	468	936
14	234	468	936
15	270	540	1080
16	288	576	1152
17	306	612	1224
18	324	648	1296
19	342	684	1368
20	360	720	1440
25	450	900	1800
30	540	1080	2160
35	630	1260	2520
40	720	1440	2880
45	810	1620	3240
50	900	1800	3600
55	990	1980	3960
60	1080	2160	4320
65	1170	2340	4680
70	1260	2520	5040
75	1350	2700	5400
80	1440	2880	5760
85	1530	3060	6120
90	1620	3240	6480
95	1710	3420	6840
100	1800	3600	7200