Depends on the weather etc. Poke around in it with your finger to check moisture.

One thing to be especially careful with in regards to yews. They are extremely susceptible to being over watered. Deep watering less frequently is the key. If your soil is heavy with lots of clay or if it is planted in an area that does not drain well could also be a potential problem.

Thanks for the info. That sensitivity to wet feet was what I needed to know. I'll be careful with future watering.

The yew in question still looks a paler color overall as compared to it's sibling. The healthy yew looks quite two-toned with bright new growth against deep green while the less-healthy plant looks a lot more monotone---a duller olive green overall.

Since the plant responded favorably to the initial deep soaking (limp new growth perked up) but still looks a bit anemic color-wise, I wasn't sure how to proceed---let the root ball dry out between waterings or keep it's feet wet for the time being.