Did they flower?

tj

please give us your climate zone and a geographical reference

which were planted when?

what was your winter like last year?

excessive green growth over flowering is typical of too much of the wrong fert ...

how did you plant them ...

sexual maturity ... comes when ti comes ... you really cant compare divergent plants when talking about timing ...

it would also be nice to know.. how big yours are ...

finally.. insufficient sun can affect plants ...

ken

Some plants need cross-pollination from a genetically different plant of the same or similar species to fruit well. Many of the Viburnums are like that, and if you do a search of Viburnum on this forum, probably several threads will turn up from somewhere around 2005 or 2006 that discuss which Viburnums will pollinate which others.

My red-twigged dogwoods never fruited even though there are wild red-twigged dogwoods nearby. I don't know why.

Inkberries (Ilex glabra) are dioecious (separate male and female plants) like other hollies, so you need both male and female plants to get fruit. A named variety like Shamrock will all be the same, though I don't know if it's male or female. If male, it won't get berries regardless, but if female, it will need a male with a similar blooming time. Spicebush (Lindera benzoin) is another dioecious plant, and so will only have fruit if it is a female plant with a male nearby.