Each pot will have 4 creeping jennies that cost $4.00 each so that's 4*4 = $<<4*4=16.00>>16.00
Each pot will have 4 geraniums that are $3.50 each so that's 4*3.50 = $<<4*3.50=14.00>>14.00 each
The fern is $15.00, the creeping jennies are $16.00 and the geraniums are $14.00 for a total of 15+16+14 = $<<15+16+14=45.00>>45.00 per pot
He wants a planter at each corner of his rectangle pool. A rectangle has 4 corners so he needs 4 pots at $45.00 per pot for a total of 4*45 = $<<4*45=180.00>>180.00
#### 180