It didn't seem like the apricot hosted the glazenut seeds, but instead was playing as hybrid support.
So, to save seeds, I've planted T-shapes instead of a full patch.
oblong patch 1 - Grade 3 Thanalan Soil; (Harvested on 5/7)
1st bed - royal kukuru bean
2nd bed - apricot + bag of glazenut seeds
3rd bed - royal kukuru bean + bag of glazenut seeds
4th bed - nothing planted
5th bed - royal kukuru bean + bag of glazenut seeds
6th bed - nothing planted
The results show it doesn't really seem to care which plant is hosting the seeds as long as you have the correct cross adjacent to it.
So, Royal Kukuru x Apricot works.

oblong patch 2;
1st bed - nothing planted
2nd bed - prickly pineapple + royal kukuru seeds
3rd bed - nothing planted
4th bed - prickly pineapple + royal kukuru seeds
5th bed - apricot (harvested on 5/8/2014 around 2am EDT)
6th bed - prickly pineapple
There's another interesting thing I did with patch 2. Since the Prickly Pineapple finished earlier before the Apricot does, I've re-planted the Prickly Pineapple again.
This means this patch of Prickly Pineapple was re-planted while the previous Apricot was still growing. Of course, the previous Apricot finished a day or so later, which was also re-planted as well.
Prickly Pineapple was ripe and harvested today (5/6/2014)


For reference again for those who don't know how the beds are numbered in the oblong garden;
Code:
1-2-3
6-5-4
1 is the top left corner of the bed when placed without rotating it.